>>12726963Everyone else is explaining, so I will too
Charmander to Charizard - You just don't forget your first bro. Teaching Lance what a real dragon could do (with my over leveled Charizard) was sweet to me when I was a kid. Additionally, fire and flight in one package, useful for travel.
Piplup to Empoleon - I just really liked his look and then found his type combination fairly tank-y against most pokemon
Drilbur to Excadrill - Gotta get out of caves somehow. That and a hefty attack let that little power-pack pummel his way into my heart
Ralts to Gardevoire - I keep getting one in Random-Nuzlockes, I'm not fighting fate.
Piloswine to Mamoswine - Who doesn't want a wolly mammoth?
Mienfoo - Mienshao - The health-regeneration is a fantastic feature on this fast and furious attacker. I just enjoyed him immensely in BW(2)