I think Wayne and Harrison easily put the Colts into contention for best 2 WR's ever, but as you go down the list, I think the Colts lose ground. The Steelers would have an argument for best WR's overall over the Colts.
Mike Wallace and others.
When you take into consideration what Faulk did along with Bruce and Holt those may have been the best three headed combo in history.
The one receiver that was as good as Rice was Tim Brown. He just didn't play his career with QBs Montana and Young. He was just as talented.