I think it comes down to Jennings and Carter. Not that numbers say everything but here are their career stats. Pretty similar.
Jennings 219catches 2969yrds 34tds 13.6/catch 6 rushes 1 yrds 1td
Carter 187catches 2914yrds 34tds 15.6/catch 2 rushes 9yrds Throwing 2-4, 72, 2 TD
Also, look at what each player has had to deal with... , Constant Double teams, a new system every year.
Jennings 219catches 2969yrds 34tds 13.6/catch 6 rushes 1 yrds 1td
Carter 187catches 2914yrds 34tds 15.6/catch 2 rushes 9yrds Throwing 2-4, 72, 2 TD
Also, look at what each player has had to deal with... , Constant Double teams, a new system every year.