One of the main reasons I was looking at these two is 1. It's REI... always good quality and 2. The Kelty won a backpackers award in 2011. I was mainly looking for a good quality tent that I could afford as well.
So far I'm leaning towards the Kelty mainly because I found it cheaper and I need it by next week for my College class. I think everything total including a foot print is somethin like $165 whereas the REI tent is gonna total $197.12
With that said, I'm not primarily focused on light weight, though its obviously always going to be a beneficial factor