Probopass....because....no. I mean... Nosepass was one thing. Once I realize it had arms it made me feel better about it...but Probopass is just a giant head....with a mustache.
Rhyperior... not because of its cluttered and excessive design...or the fact that its an evolution of a line that was already fine where it was...but because of its color. It's a slightly different shade of grey.....and that bugs me so damn much.
The last 2 ice cream ones.... I mean the first one is fine...it's just a cute ice cream snow monster....but then it gets derpy....and then they add a straw....a damn straw.
Hippopotas. Those eyes.
But IMHO....all of those are trumped....by AMBIPOM.
That seems to be the case with the "new evolutions" in gen 4. Either they became some of my favorites by improving on the design of those that needed it (Lickylicky, Froslass, Magnezone, Tangrowth, Honchkrow, Mismagius) or they became some of my least favorites by screwing up the ones that were fine already (Probopass, Rhyperior, Ambipom, Mamoswine).
To die without leaving a trace, that is the legacy of the Garo