Its UI incredibly customizable, which I like a lot, and it seems to have mapper support just about as good as the FCEU-mm releases, which is nice since I love playing obscure Hong Kong pirates and stuff. I tested everything out and NEStopia definitely seems like the best. I used to use FCEU, specifically the FCEU-mm releases, but I recently started getting this weird skip in the audio and gameplay every couple seconds and since I couldn't seem to track down the exact source of the problem (turning off hardware acceleration would solve it, so I assume it had to do with my video card settings, but without hardware acceleration I couldn't get proper vertical syncing) I decided to just switch to using another emulator. It also seems to have more video setting options, which is good because it takes a lot of tweaking to get the picture just right in an emulator. I prefer SNES9X over ZSNES mostly just because I like having the standard Windows UI instead of its own DOS-like UI.
