Did you even read the rest of my post? There are some shinies I really like. Charizard, Umbreon, Haunter and Abomasnow are all good examples. But most shinies are horrible. Just look at Machamp, Scrafty, the list goes on. Most are terrible, and there really is no denying this.
I am the only true Pokemon fan. Find me at: http://www.youtube.com/user/AdventOfTherian/about
I have a feeling that people wouldn't hate on Purugly as much as they do if it had been given a different name. It's just a big fat cat like Garfield, I don't see what's so ugly about it.
My vote would probably go to Gurdurr. That thing is just ... eugh. And I don't have a blanket hate for all of Gen 5 either, I actually really like the majority of them. But the Timburr line does not fall into that category.
If you actively hate Justin Bieber... then you don't know what "intended audience" means. Hate Twilight instead, it's far worse.