He is definitely not more valuable than Ryan Matthews. Ryan is in a very good offense (Chargers) with a very good QB (Rivers) whom defenses have to respect. Conversely, Spiller is in one of the lowest rated offenses (Buffalo) with really no one the opposing defenses have to fear. Add to all of that, Spiller (although getting the start this week), still doesn't seem to have the starting gig locked up. He's starting it seems, more because of injuries to both Lynch & Jackson. Of the two, I would easily want Matthews of Spiller. Until Spiller is the definite #1 RB in Buffalo, I would rank Matthews way ahead of him.