I'd probably go with the second guy. That is if you plan on redshirting him. With that 29 WE he will take some time to develop those 7 high potential categories.
I usually rank C for: REB, DEF, LP, ATH, SB. I included some guesses on their ending ratings.
Player 2 will be better in REB (75-65), dominates in DEF (85-25), dominates in ATH (85-40). Player C will be much stronger in LP (90-60) and better in Shot Blocking (75-60).
They're pretty much a wash in PER, BH, PAS and player C has better SPD.
FT shooting is also a much more important rating in the new engine. Not knowing their current numbers the high potential of player 2 looks good.