in my opinion there are a few combination of skills
diablos (last upgrade) 1488 raw -15% affinity white sharpness
unsheathe critical
-if you keep sheathing after every attack it means all your attacks have 25% bonus damage all the time, it disregards negative affinity so the -15% affinity only affects attacks after the unsheathe attack
artisan/sharpness +1
-to push the diablos sword to purple from white sharpness which gives you 50% sharpness bonus damage (white sharpness gives 30%)
fastcharge
-charge your gs faster by maybe 1- 1.5 seconds not too sure, what i am sure is that a level 3 charge is better than 3-4 combo attacks.
i get the above from using full rajang set ,you can mix and match but i dont really see the need. rajang armor set is quite good, fully slotted it gives me the above skills and dragon resistance. the resists for this armor are all positive except for ice (it's weakness), not really too much of a dent in the armor as the first time i killed ukanlos was while doing it solo with this armor equipped (took me a few hours of trying tho). it does however give TAUNT skill which makes the boss target you more often. which is actually a good thing coz what i normally do is stand behind a boss and charge my gs. if he turns to me, he's gonna end up getting a nice level 3 charge on the face. if he doesn't then his tail, legs does.
against fast creatures charging kind of sucks ass (even with fast charge)
so i would trade my fast charge with attack up large (adds roughly 90 damage), rathalos armor gives you this.
if you're willing to take risks potential +2 is better than attack up large, it gives you 30% bonus damage when your life is at/below 40. 30% of 1488 is much better than a measly 90 bonus damage, but you've got to be very confident not to get hit (since you need low life to activate the skill).
to make diablos gs u need to kill..... diablos.... full weapon path + items u need can be found on minegarde.com (highly recommended webbie)
alternatively if getting artisan skill is too much of a hassle, simply get tigrex gs. tigrex gs is actually superior to diablos (if you dont get artisan for diablos). tigrex gs's damage is roughly 100 less than diablos, but makes up for it by having 20% bonus damage from purple sharpness (does not need artisan).
regardless, if you want the best damage for gs, the most important skills are unsheathe crit and purple sharpness.
one might argue that shengaoren gs is much better as it's raw is 1440 has no affinity and has def bonus, but upon closer inspection, it's purple sharpness is short. it gets blunt easily, even the blackbelt gs (1300++ raw with no negative affinity) has the same problem.
if damage isnt your primary concern, and if white sharpness is good enough for you, make sentoryu wolf (yian garuga gs). 1296 raw 40% affinity with 3 slots.
i recommend gs users to have these gs:
diablos gs - requires unsheathe crit + artisan
tigrex gs - requires unsheathe crit
ceanatur gs - balanced weapon
lavasioth gs - high raw + fire element, defense, positive affinity, but requires artisan
rathalos+rathian gs - high raw + dragon element (used to break elder dragon horns)
sentoryu wolf (yian garuga gs) - 3slots, 40% affinity, but requires artisan
daimyo gs - +30 or 40 def, requires artisan
shengaoren gs - same as above, also requires sharpness (weapons stay sharp longer) to be reliable, despite this weapon requiring sharpness skill, this is one heck of a cool gs. when u charge it, red color runes appear on the blade (brighter/redder depending on the charge level)- AWESOME!!!!
regardless of all those weapons, nowadays i just use diablos gs most of the time. so if u re making only 1 gs, then go make diablos.
however, if your HR is low, or if you're a new player, get ceanatur gs. totally worth it!
Added on October 16, 2009, 11:34 amlol i m going to stayover at derlins place tonight, staying over till sat, might be hunting with him and kaze on sat.
hmmm.... sunway is a bit out of my area, but if enough people are going, then maybe can arrange an outing?
but anyway, for the real hunter who really think you are good in GS..just go for Diablos King blade..once u got it, you will never want to put it inside your inventory.haha.
currently using siegmund+los soul armor with HGE+ Attack huge, erm..kinda dissapointed with gold rathian and silver Los..too easy to kill i think..
oh ya Exsea, u currently wearing rajang set right?i also thought of making one but the only reason i didnt bcox it didnt have HGE skill
but im kinda tempted with the Artisan +10 and Potential +15 skill.....i was wondering potential +15 provide how many % of damage and def increase if Hp lower than 40%???