Superhero Graphic Novels?

[Mito]

I'm looking for Superhero based Graphic Novel recommendations; if anyone has some!

I recently found this outlet of entertainment, and I'm LOVING it. Only read a handful of novels so far, but I can't wait to read more and more!!
At this point in time, I've read..

Beast Boy
All-Star Superman
Marvels (incredible artwork!!)
Fantastic Four 1234
X-Club
Kingdom Come (SO good)
& Identity Crisis (my #1 read)

So if anyone knows of any other reads I may enjoy, I'd greatly appreciate input!