I ended up getting the 23 inch. The ASUS MS series is probably more sexy though, I was just going for thinness.
I checked it out at Conns the other day and the colors seemed decent, but the blacks were excellent. The whites also seemed a bit whiter than on my Hanns G monitors. I'll be sure to post more about it when it comes in.
EDIT: Here is what the ASUS MS series looks like. I almost went with the MS246H before I found the AOC.