Thanks for all the responses. I test drove the Sierra today and really like it. The dealer only had an SLT with leather, so I will have to wait for the SLE to come in. He has a few coming in within the next couple of weeks.
A buddy of mine just bought a Ram 1500 and said it just edged out the Sierra when he was trying to make up his mind. He actually drove the Sierra during the test drive to the Ram lot and put them side by side. He is gonna show me his truck. I was just looking at the payload numbers online for the Ram and they are a lot lower than the GMC. Guess It doesn't hurt to look while I wait for the SLE to come in.