Just wondering what system you ended up going with? I am looking at the exact same question.
2 x AMS-350 for L+R
1 x AMS-LCR for centre
3 x AMS-LCR for L+R plus Centre.
I am going to have a DSP3200 sub and Yamaha A1010 receiver.
I am not an expert and just researching like most - my reading leads me to thing the 3 x matching LCR will better as the crossover to the sub will be same across all speakers. But then the uneducated part of me is curious if 2 x 8" drivers on each side (in the 350's) with the LCR in the middle is better?
Given I will have a sub to handle all lower freq - perhaps 3 x LCR is best?
Does anyone have advice?