Being a lady, I was gonna try and do the "opposite", y'know, name a dudebro film I like. But I pretty much like all kinds of films, and I'm not really sure what the opposite to a romantic comedy is.
So yeah, I like The Princess Bride a lot. Really I like a lot of romantic comedies as long as I can buy into it. If I automatically dislike the couple, it's not working for me- Knocked Up was awful for that, I couldn't even sit through that whole film.
I think, not including The Princess Bride, Enchanted is probably my boyfriend's favourite romantic comedy. The first time I watched it with him in the room he was watching it behind my 3DS, pretending he wasn't into it.