Not to go off topic too much but while 3DS's slide pad is not as good as a proper analog stick, it's still way better than Vita's tiny stick with no grip and range.
I played Unite on Vita and the camera control is definitely worse than 3U; ''the lock on'' is simply much more useful than a dual analog stick and the only time you'll have problems is when facing 2 monsters in a single area or hunting a certain monster that's hard to lock on. At that rare times you can use the CPP or the touch screen D-pad, though the later is obviously worse than a 2nd analog stick.
What sucks about 3U on Wii U is the lower frame rate, input lag and it seems like the game sometimes doesn't register your button presses, especially underwater.
I've just gotten a LAN adapter and tried playing the 3DS version online through Wii U and I think I'll stick to that. Though everything seems so blurry after all those hours in the Wii U version...
