I love quilting magazines, they're kind of a guilty pleasure. I'm not even sure how many I subscribe to right now. Might be as many as 10? I read them all, cover-to-cover, and flag projects I might want to make with a post-it that sticks out like a tab; I write what it is on the tab so I can find things. Right now I'm actually churning through my collection again because I have a pregnant friend and I've never flagged any baby projects, so I need to go search through and see if anything inspires me!
My favorite isn't a traditional quilting 'zine, it's Quilting Arts. I love art quilts and this 'zine is pure eye candy for me. I don't make many art quilts, but I LOVE looking at them. I also really like the 2 new-ish magazines put out by the same publisher - Machine Quilting and Modern Quilts. There are only 3 or 4 of these ones per year, though.
My most favorite out of the more "traditional" magazines is probably the one that's simply called Quilt. They do a variety of projects and it seems to be the 'zine that gets the most flags for patterns I'm actually interested in making.