Hands down Springhill Suites out at the University. I believe you get free breakfast (used to at least) which is a nice spread with eggs and waffles... Always had a great experience there.
It's been years since I've stayed at the Marriott downtown, but it was so bad, that I ditched my platinum status and switched to the Sheraton. It was filthy and the service very poor. I would never stay there again unless they did a major reno and change ownership.