its close enough that your best bet is to put raynor against the weaker defender, if applicable, and if not, to put chambers against the better scorer.
in the event the above results in a tie, i would put chambers at pg mostly bc of his passing. scoring wise there is little to no impact of who plays at which position, at least with per shooting (not really sure about lp, haven't seen enough sample size to know if it matters if you are playing the 1 or 2 - if it does, it might put chambers at SG).