Alright, let me tell you a story about one of my favorite games, Rumble Arena 2.
Its a fun, simple Digimon fighting game, directed at a younger crowd so even on the highest difficulty its not too hard, in fact there wasn't really a difficulty setting to the story mode, just a slightly harder route that ends in a different boss. Anyways, when I was first playing I decided to use Patamon, that adorable little rat. I knew like, nothing about digimon at the time, so I kinda thought it would just get bigger or something. Nope, it evolves into an angel. MagnaAngemon was pretty much unbeatable in 2 also, as he could reflect any attack stupidly fast.
Ever since then I've always had a soft spot for the Angemon line, leading to my current favorite Seraphimon