got this guide from other forum...
looks like im doin it right...

QUOTE
Guide 1.1: Levelling Your Apprentice!
The apprentice is most peoples first choice for their first characters as the apprentice has great towers.
Levelling up with the apprentice is quite easy. All you need is the right equipment which shouldn't bee too hard to get!
Levelling from 1-10:
For all classes, levelling from 1-10 is best and easiest at the Deeper Well. You should start off with medium difficulty and you may lose at your first try, but soon you will eventually level up and the level will become more easier. Refer to my Deeper Well Guide if you have trouble. Once you feel confident with medium difficulty Deeper Well, start moving onto a harder difficulty at about level 7-8, or earlier if possible. You can earn mana easily at the beginning levels at Deeper Well.
Levelling from 10-40:
Now you should start doing Deeper Well on insane difficulty, it may be harder at first, but the XP you gain is much higher. Keep training at Insane Deeper Well until level 40, where you will then move to a harder challenge. With Insane Deeper Well, towers are really important and you can get good drops from there as well! You can earn about 40k per 10 minutes.
Levelling from 40-70 (Option One):
You can now leave Deeper Well to go to a harder, but better challenge. This challenge is called Raining Goblins which you can easily unlock by completing all the missions up to Alchemy Laboratory (you also need to complete Alchemy Laboratory). You should straight away jump to Insane Raining Goblins at level 40 as it is really easy and you can earn about 50k+ per 10 minutes. Refer to my Raining Goblins guide for more help of Raining Goblins solo.
Levelling from 40-70 (Option Two, requiring a Team):
This is the easiest method of levelling up! You can earn about 100k mana within 10 minutes, however you require a team of people who will help you and you need to have completed up to and including Hall Of Court. Zippy Terror is a very easy challenge in a group, and you should easily reach level 70!
Requested Methods:
Requested by a player. Wizardry! All you need is an Apprentice with good or alright Tower stats. Just build one Deadly Striker Tower along the routes of the Mages. If you haven't met the level requirement for a Deadly Striker Tower, just use Fireball Towers instead. You should be able to get about 25k XP per 10 minutes. I wouLd still suggest doing Deeper Well Insane as it's easier and you can get more experience!
Guide 1.2: Levelling up your Huntress!
Also some peoples first choice for their first hero, but my second character. The huntress can also very easily level up like the apprentice, with less lag XD !
Levelling from 1-10:
Level 1-10 is the same as for the apprentice, but with traps! Use mainly proximity mine traps but far apart from each other so that they don't set each other on.
Levelling from 10-40:
Same as apprentice once again, however this time you have access to more traps so stack the traps in the order: inferno trap, gas trap, proximity trap and ethereal trap near the stairs near to the crystal, or the other set of stairs, your choice. If you choose the other set of stairs make sure the ethereal trap is positioned so it could still take out the orcs coming from the door near to the stairs.
Levelling from 40-70:
Same as apprentice once again. Stack the traps like before with the levelling from 10-40, in the same order near the two main entrances to the crystal. On the two minor entrances to the crystal, place the traps in the same way but without ethereal traps. You may not have enough defence units so you may have to not use some inferno traps, as proximity traps do much more damage.
Levelling from 40-70 (Option Two):
Same as apprentice.
Refer to the Zippy Terror guide. You will need a team.
Requested Methods:
Levelling from 10-40 (Option Two and New):
This method was requested by a player. Wizardry! Ever heard of it? It's a challenge and is an alternative for Deeper Well Insane. This method is for all of you who hate doing the same thing over and over again. In Wizardry, you could get about about 25k XP per 10 minutes of playing. All you need is an alright huntress with good or alright Tower Stats. Build a gas trap and ethereal trap on top of each other a little away from each respawn area of the Mages. Just keep repairing or upgrading your traps and you should be fine! I would still suggest doing Deeper Well Insane as it is much easier and better XP.
Guide 1.3: Levelling your Squire!
Levelling your Squire may be a little bit harder than with the Huntress and the Apprentice as you won't have as useful towers, however, levelling is still easy.
Levelling from 1-10:
Same as for the Huntress and Apprentice, however you use different towers. You need as many bouncer blockades as possible, two by the stairs (one of each) and spread the rest out on the battlefield on the ground. Levelling should be easy with squire from 1-10.
Levelling from 10-70:
Same as for the Huntress and Apprentice. However, this time you use two Slice N Dice Blockades at the bottom of the stairs (one on each) and two bouncer blockades on the top of the stairs. This should be enough to kill all the monsters. Just keep repairing your blockades. This can be used for up to level 70 as the option for the Raining Goblins is cancelled as your squire won't be able to defeat all the goblins.
Levelling from 40-70:
Zippy Terror once again! This time, you can make yourself VERY useful and you would be able to take care of the top, or one pathway near the bottom! All you need to do is block, and have a good sword with a good block percentage.
Levelling from 60-70 (or 50-70, depending on your sword, fairy and a good resist set) :
Requirements: A good sword, a good fairy and good resists.
This time, you can REALLY easily level up by doing Monster Fest, a well known challenge which yields great rewards!
To unlock Monster Fest you need to unlock up to and including Oakvalle Crossing.
You can try easy Monster Fest if you don't feel to confident, or you can go straight to Medium, Hard and Insane difficulties! You can reach level 70 from level 60 by doing insane Monster Fest for about 1 hour! You can also get great rewards worth a lot on the forums!
Guide 1.4: Levelling Your Monk:
Levelling your Monk will be harder than the other classes as the Monk's towers aren't as great as the rest. However at times you may find that levelling your Monk is easier than levelling your Squire.
Levelling from 1-10:
Try your best with Deeper Well medium as it is quite hard with a Monk. You may find that you need to go to Easy Deeper Well. With your monk, just use the first available aura you unlock when you start using a monk. Place it all over the map on the battlefield just outside of the purple aura on the ground which makes the monsters invincible. As you progress, start using enrage auras instead all over the battlefield. Make sure to kill the orcs coming from the sides.
Levelling from 10-40:
Same as for all the other classes, just use enrage auras all over the map like before. Should be trickier than before with the other classes but you will eventually manage it in the end.
Levelling from 40-70:
You now introduce Raining Goblins back into your XP farming list of levels! Use enrage auras just outside of the purple aura surrounding the crystal. Should be tricky once again, but you will eventually get the hang it in the end. I recommend using a multiple projectile range weapon on your monk as you will be able to attack more monsters quicker.
Levelling from 40-70:
Zippy Terror once again! You can try to help out as with the huntress and apprentice, but your helpers should hopefully be able to kill all the kobolds.
Thats it to the levelling guides for all your heroes!
Make sure to check the next guide in the next post (as soon as it comes out)!
Happy Levelling !
credit to Malandm from trendyent forum....