The Spyro world seems pretty awesome. It's huge and colourful and filled with magic. There are beautiful creatures and crazy sights. Supercharging around, collecting gems, that sounds like the good life to me. And all the nasty stuff that occurs seems to only happen during times of war - the world looks like its quite peaceful most of the time. And even when some baddie is wreaking havoc, they don't seem to kill people so much. They just turn them to crystal until some hero comes along and frees them. That doesn't sound all that bad.
Medievil's universe would be great too, for much the same reason. So much magic and mystery and wonderment. Enchanted weapons and fairytale creatures. Plus, who wouldn't want to rock out in the Hall of Heroes for the rest of eternity after you die!