I said Henderson over Harrison based on the comparative importance of the position - RB to WR. Henderson reminds me of Aaron Jones only faster. Harrison reminds me of any of the 5 or 10 best WRs in the NFL. It's a close call, but I just think 2 things: a great RB dominates more than a great WR, and greatness in college translates better to the NFL for RBs than WRs.