Like Angie, I am a total magazine junkie! In fact, after she mentioned looking at them in a few languages, I'm inspired to do that now, too...
I subscribe to InStyle, People Style Watch, Lucky, Harper's Bazaar, Marie Claire, Redbook, O, Real Simple, More, and probably a few more that weren't mentioned. Not all are fashion magazines, per se, but they usually have fashion segments in them. My mother-in-law always passes some of her magazines on to me when she's done with them, including Vogue and Vanity Fair (not about fashion, really, but has some good ads).
If I had to only subscribe to 3 of the above, it would be InStyle, People Style Watch (totally agree with what Mo said on this one), and Harper's Bazaar. Lucky does seem too young for me (I'm 45) but I still like to see what's trendy and they have lots of great photos. I like the articles in Marie Claire better than the fashion and Vogue is just fun to look at but doesn't really show anything that would work for my price points and lifestyle.
I love fashion magazines, but I learn more about fashion from this forum (and others I visit, plus blogs) than I do in the magazines. What people post here is more accessible to me and translates better to my actual life than what is in magazines.