Until three days before I bought my game, I was Oshawott all the way.
Even now, I still want Oshawott. I'll probably buy White and choose it then, or wait til that 3rd version comes out. But I chose Tepig.
Something about it just. I wanted Tepig, not Oshawott. And I picked it, and it was a total beast the first half of the game, until Pokemon started getting heavier. Heat Crash loss some sparkle, so I swapped it for Flamethrower. Decent. When Flare Blitz becomes available, nucking futs. Rollo will be back in business.