We finished the worst ones, so let's no longer point and laugh at the bad ones, and praise the good ones. Gen 3 was the best pokemon-wise. so I started with that. I say the best are groudon, Zangoose (Obviously) and swampert.
Pokemon red randomizer nuzlocke! http://www.gamefaqs.com/boards/367023-pokemon-red-version/66003773 The Official Shiny Zangoose of the X/y Board!
Everything that isn't Volbeat, Illumoise (see, I don't even know how to spell their names!), and Zangoose (can't stand that thing and I don't know why) is at least decent. And there are only a few "decent" Pokemon. The rest are awesome.
I'm not easily impressed; I'm usually oblivious to whatever's in front of me. Stunfisk is the epitome of monstrous majestic legendary creatures that spew fire.