From reading many cell-related forums (I went through the same decisions not too long ago), The biggest issue with the Motorola v3 RAZR (and most other motorola phones, is their lack of a good QC. You might get a good one, or you might get a really bad one, and it is totally random and seems to happen in the negative more often than with other brand phones.
While I do like the "styling", I went with the Nokia 6230b with Cingular. I have been using Nokias for years so I am very used to their menu structure. It also has a blazingly fast menu (you push a button and it reacts instantly without lag). Nokia's also tend to have better reception than Motorolas in general, although the v3 is supposed to be very good. In the end, I decided on a proven boring quantity over style.
Do the pocket test too. Stick it in your pocket. Although it's very thin, it's VERY wide and long relative to others. My Nokia is thicker, but much more comfortable actually in the pocket.