I would have to say The Crow, as it's the only one I own on DVD. I used to own Blade, but I got sick of it and traded it in. As for the others...
Superman: The Movie (1978) - saw it ages ago, but don't really remember it
Superman II - saw it ages ago, but don't really remember it
Batman (1989) - liked it when I was 11 or so, haven't seen it since
Batman Returns (1992) - not so much
Batman Begins (2005) - don't plan to see it
X-Men - liked it... just not enough to buy it
X2: X-Men United - liked it better than the first one... still not enough to buy it
Spider-Man - only saw 15 minutes or so of it... not a Spider-Man fan, so it didn't interest me
Spider-Man 2 - didn't bother
The Hulk - I dislike bad CGI
Daredevil - never saw it
The Incredibles - this was pretty cool... for an animated movie
Hellboy - never saw it
Blade I, II, or III - liked the first one, but it didn't age well for me.
Catwoman (2004) - really bad