Oh yes, some of the pink (but not purple) shiny pokemon are pretty bad. Buneary is by far the worst though. Sneasel looks better pink than Weavile. Don't know why, just does.Weavile is too girly. same for kingdra and all the others with pink shinies.
Quilava. I haven't seen all of shiny Pokemon forms, but I hate how Fire Pokemon are purple. Quilava would look so cool in a gold color or something.