I had the Body Glove for the first week or so. The "grippy" texture is nice, but the case was just too thick for my taste - aesthetically and functionally. I found that I was having a hard time typing the keys nearest to the border of the screen because of the thickness of the case.
I switched to the Innocase II. It's nice and thin. It looks great. One thing is that it's a little bit "slippery" which seems like an oversight on such a product. (The Incase covers for iPhones look similar but have a slightly rubberized texture, which feels more comfortable.) But it's not like trying to hold onto a wet bar of soap or anything, so overall, it's not that big a deal.
I went from the $20 flimsy gel dust magnet (dumb impulse buy) to the Body Glove to the Seidio. I wish I hadn't had to waste so much money, but I'm pleased with where I'm at right now.