I was talking with a friend recently about Analysis, which is one of my favorite journals. The reasons should be obvious: short, pithy papers that make a clear, interesting point and then don't hang around. With a 4-4 teaching load, I have less time than I would like to sit around reading monstrously long philosophy papers that arbitrarily ramble from point to point, and so Analysis is ideal for a guy like me. (Of course I'm kidding, but only a little. Since I teach a lot, it takes me like a week to read a 30- or 40-page paper with any degree of care, so a paper like that represents a big investment, and so I have to be conservative about what I'm willing to read. Interestingness isn't usually enough.)
Another thing I like about Analysis is the way they'll accept a discussion piece and invite a reply from the original author--you can often find nice philosophical discussions proceeding in this manner. And another nice thing about Analysis-style papers is that it doesn't take a million years to write one. (Not that you don't have to be careful, but at 3,000 words, you've got a lot less to be careful about.) The problem is that Analysis doesn't accept that many papers, and so it doesn't really pay to write them. If Analysis doesn't take it, you're SOL.
Now, Australasian Journal of Philosophy will accept short discussion pieces, and the online Journal of Ethics and Social Philosophy will, too, so Analysis isn't your only option. But it's kind of too bad more journals don't do this. Am I missing any?