John - the DPAs are great for indoors. A lot of people use 'em outdoors, too. If I had a single pair of windscreens, it'd be the DPAs. But as it is, I love my Shure's outdoors.
I went with the DPA's because I wanted something that I could use in both situations. After spending $30 on a pair I'd hate to have to spend another $30 or more just for outdoor situations...