Pros and cons of hummer H2 **or** cadillac cts USED UNDER 20K?

I need some advice, this would be our familys main vehicle, grocery getter,back and forth to school etc.

I really like both and want to know what others think of pros and cons. I am not talking about brand new. I only buy used. My budget would be about 18k-20kPros and cons of hummer H2 **or** cadillac cts USED UNDER 20K?The CTS is a beautifully appointed car with most any bell and whistle you might need along with car of the year a couple years back. The H2 just says look at me, unless you live in the wilds somewhere and need a day to day off road vehicle. Get the CTS