Luck is a decent option and he has a great match-up this week, but I would not put him in over Matty Ice. This is a case where the "don't sit your studs" rule applies IMO.
I would not bench Matt Ryan unless he gives some indication he is slowing down. He has been money in the bank this year.
Here's mine: viewtopic.php?f=19&t=527243
QB: R Griffin III, A Luck
RB: A Foster, F Gore, T Richardson, K Hunter, M Hardesty, A Green
WR: V Cruz, M Austin, P Garcon, S Moss, B Hartline
TE: J Witten
K: Matt Bryant