A Nightmare on Elm Street 2: Freddy's Revenge

It's not a good movie by any means, but I just don't understand the hate for it; IMO, it's the only non-Langenkamp entry in the series which isn't completely abysmal.

Exorcist II: The Heretic

Again, not a great movie, but I don't feel the hatred it's received is warranted. Of course, I never liked the first film, anyway, and I am a fan of bizarre, surreal films, so I guess what the general audience loathes about this film either doesn't faze me or even appeals to me.

Home Alone 2: Lost in New York

Ace Ventura: When Nature Calls