I am thinking Whitfield, just.
He seems to be getting slow starts (29 at HT in Rd 7, 32 in Rd 6 with a tag), but still hit the ton both those weeks. Get the feeling he is not far off getting a big score, but no guarantees with that.
Ignoring Rd 3 he is averaging 99.5. Obviously you are paying more, and you need to weigh up if you think it is worth spending the extra $60K, but I would say he has more potential to score big out of the two.
I am tossing up between these two as well, been trying to work out upcoming trades now that we get 3 trades in R9-12 and I think I can only realistically get one of the two into my team. I would also be interested in a few other opinions for this one.