I prefer swimming, to be honest. It's a great stress reliever, is cool and refreshing, and, well, doesn't run the risk of me re-breaking my wrist -_-"
No... I've never really understood the whole EV/IV thing, and it seems like such tedious work that, honestly, doesn't really benefit me that much. There are no competitions anywhere near where I live or will live, and none of my friends I know do it, and a lot don't even play Pokemon anymore. I just aim for completing the games as much as I can, including the Pokedex and sidequests.