I'd like to play Az and get some revenge for last year. Plus a road game at AZ is just like a home game. There are usually more Cowboys fans than Cardinal fans.
Of course I'm picking AZ. Everyone seems to doubt them all the time and forget about last year. If it ends up being Arizona vs. Cowboys in the NFC Championship game I will just have to close my eyes and be happy for whoever wins. My Mom made a great point though, we were Cowboys fans first so I'm sure I'd be pulling for Dallas a little more.