I wanted to know how others play ACNL...
Personally I play in 2D, I have SO much trouble with the 3D on my 3DS...
It looks so fuzzy and weird no matter how I put it.
2D mine looks fuzzy and weird too if I try to use 3D, which I noticed before I ever bought it and almost wasn't going to get one at all but when ACNL and Pokemon x came out I could stop myself
2D. 3D is nice but it eats the battery life fast and hurts my eyes after time. Makes me feel dizzy after a while. I am still not use to it. But per say, I don't use the 3D often while I play Animal Crossing.
I'm rarely using the 3D feature because it feels exhausting for my eyes after a while. But from time to time I switch it on to have a look at certain details, like falling cherry blossom petals.
I usually have it on 2d but sometimes I switch to 3d for the funzies (I don't have it too long though because as many have pointed out above it's very exhausting on the eyes)