I'm actually currently a professional Comic Book Guy. I get paid to take comic shipments out of boxes, stock comics on shelves, put comics in bags, and organize old comics. I read a lot of comics in-store. I prefer Marvel to DC and try to keep up on most of their books. One universe is enough to keep track of so I don't check out the DC books very often. I do read a few things, like Gotham City Sirens. (If anyone's wondering (TEM), this is the same store I've worked at forever, but we had a remodel which included creating a giant comic section so I switched over to be in charge of that, from my old position of being in charge of pornography.)
When I was very young, a local supermarket carried the Archie-published Sonic the Hedgehog series and my parents bought me issues sometimes, starting with #3. Somewhere in the 40's I started getting every single issue and eventually got a subscription. I've never stopped buying them, including the spin-off series, so that's the one area where I'm a collector. I'm a couple years behind in actually reading them, but I will catch up someday, haha.
My favorite comic writer of all time is Peter David and my favorite series of all time is the current incarnation of X-Factor. My second favorite comic is possibly Chew (Image-published). I read and like a lot of different things, though. Bendis can be extremely hilarious at times, particularly in stuff like Ultimate Spider-Man and New Avengers. He writes great banter.
I recently picked up the first couple trades of The Walking Dead.