Haven't really ever so much time or money to properly invest in that sort of thing (or, heck, get to a comics shop), but I do dripfeed through a fair array of online ones.
Those I really like, that end up also with paper copies, I'm happy to buy. More graphic novels by that point I suppose, but close enough for me. It came from a daily/weekly published kind of source.
Then there's something a bit easier to hold onto, to preserve long past when the author's webhosting may expire, to re-read and enjoy in a way that's easier on the eyes and can be taken more places, more easily flipped through and shared. And the resolution's a hell of a lot better too.
The more traditional superhero kind of comics, I dabbled with for a while ... can't really be bothered with them. It gets samey. And hard to store

Plus they're quite expensive for the amount of entertainment you actually score.
Shonen Jump / Eagle / etc kind of comics-compilation magazines that run certain serials in them I also like, as it fits my budget and my attention span, and is sort of like a "best of" of what's sort of current. Plus you can often find them in a "normal" shop (supermarket, stationers, newsagent) without making a special trip.
I was big into Manga Mania way back when (got almost all of Akira that way, for a start), and "CLiNT" is trying a similar thing with Mike Millar and his friends. Its is bloody hard to get hold of without actually ordering online or getting a subscription though, I usually find the latest issue by accident in a random supermarket when NOT looking for it.