*High fives*
*cough*
Call me crazy, but I'm kind of a closet EdxRose fan. Don't get me wrong, I think Ed and Winry would be a cute idea, but that's really it. I don't think they could really have a deep, romantic relationship (I don't know why... I just can't picture it). I think they have too much of a friend/sibilng kind of relationship. In the manga though, it's completely different o_O In the manga there are a lot more hints.
(I'm actually a closet AlxWinry fan so I'm a little biased ^^: )
I just like the idea of EdxRose because I can just picture him stepping into her life and being a father figure to her kid ^^; Plus it's just cute (she's taller than him, lmao!).