HT Processor Dilema w/ Aerial

OK, I know there are always loads of questions asking to compare on to another. Here goes:

My set up:

Aerial 10Ts, CC5, a pair of SW-12's, and the SR-3. DONE.
An Earthquake CineNova 5 channel amp (600 x 5). Maybe done.
Now, I currently have a Theta Casablanca I and a Proceed PAV/PDSD combo. I am trying to decide if I should lose both and go the Lexicon MC-1. It apparently is a good match with Aerial. But so is the Theta.

Any thoughts? So many options...............

Thanks,
Dan