7 night stay -- Sheraton Parkway or Marriott Markham?

Hi, I'm planning an early May visit and was trying to select a hotel between these two -- Sheraton Parkway (near Times Square) or Marriott Markham (central downtown). The big attraction of the Sheraton is walking distance from the Times Square mall, restaurants and free parking, vs the more upscale Marriott.

My brother-in-law will be staying also, and he loves to walk. Has anyone stayed at the Sheraton? Is it run-down or noisy and busy with sports teams that stay there? Thank you!