The funniest sendup of the Evony ads was (I think) AdventureQuest. "Pants, m'Lord?"
The problem with web ads is that, to me at least, they look... kind of tawdry. Even, perhaps especially, when they're animated. I've yet to see a web ad that didn't look kind of strained or cheesy or wan. This could just be a twenty-year-old dislike for web ads in general, though, so take what I say with some salt (and Geritol. Damn kids on my lawn.)