I'd definitely rec Cable and Deadpool. Art, storyline, characters, composition: it's the best over the longest period of time that I've ever seen (in my limited experience in comics). It's pretty good as a standalone series, too - I didn't know much about Marvel at all when I read it, and I didn't miss out on much thanks to the good storytelling.
The original Deadpool run (all 69 of them) is varying in quality towards the end, but the first forty or so are amazing for character development, plot, supporting cast, and everything. I highly recommend it.