Hi guys, need some suggestions over here.

been searching for a 2 in 1 laptop for quite some times but still cant decide.
dont talk about budget, I need something really to take around with. if possible then with pen feature which allow me to quickly sketch something out.
surface pro 4 is in my list, but still think of comparing other models before i make a purchase. thanks guys!

Yup, go for Surface Pro 4, I agree...

NO to SP4 .. battery prob ... either wait for SP5 next year out or yoga 910 soon arriving or latest XPS Dell will be introduce early Jan at CES 2017

Acer switch for budget

Except for SP4 the rest have pen feature as accessories ..

What battery problem?

fast drain, they say software prob.. I'll say don't trust them... wait for SP5 better spec with Kabe Lake, new windows 10 and rechargeable pen

I thought that is SP3 no? Update is just rolling out this week to allegedly fix the issue.

Anyway, if you say the pen is an accessory to others... You should also say the keyboard is an accessory to the surface. And it's not a 2-in-1 without the keyboard.

TS might want to check out Notebookcheck.net

They do routine review and issue their top 5-10 of laptops of various class, like ultrabook, business, sub-$500, and so on - got one for 2-in-1 also iinm.

No fast drain on mine... it performs as reported, which is ok but not great. Depending on usage, MacBook Pro gives way more battery life when surfing/watching videos than SP4, however surprisingly when gaming (Dota 2) I get nearly the same on the SP4 compared to the MBP. Probably due to better compatibility with Windows system than OSX.