Other hotel options: Hotel De Luxe is the closest hotel to the Stadium. University Place isn't the closest - 15 minute walk but it may be the cheapest.
http://www.pdx.edu/cegs/uplace.html. It is close the the PSU campus. Others in various price points on SW Broadway (equivalent to 7th Ave. The stadium is on 19th) in the heart of downtown: Paramount, Marriott City Center, Hotel Vintage Plaza, Heathman, Westin, Benson. The Governor is on SW 10th. Cheaper hotels are Four Points by Sheraton Portland, Mark Spencer, Ace Hotel, Days Inn City Center. The city is very walkable. Nothing downtown is really a big walk plus light rail and the street car tie the city together.