I've only ever nicknamed 2 pokemon. I named my shadow lugia XD001 just because I thought that name was just awesome, and I used to nickname all my torchics (when I was younger I always picked the fire type, and usually never leveled any other pokemon) Blaze, because there was a rumor that naming it that made it easier to find rare pokemon
Black and White 2 Return to Familiar Lands, except for the giant glacier.
I really wish they'd change the type of hidden power on the party pokemon page because the normal type icon looks boring. My special sweepers all have stupid looking Attack tabs on their information.