Is my system bottlenecked?

Given the power you are feeding them they "should" be lean sounding, not muddy. I highly disagree that Vandy 2's are the answer. What I think you need are more clinical sounding speakers or a new front end. Also a quick fix can be had by using thinner rather than thicker speaker cables.

Vr4 jr's is a better choice of speaker. Easy to drive with your gear and much more full range.

What are you referring to when you say new front end? Sorry for my noobness. Also, the cables are kimber 4pr

So I've decided to replace my rotel amps. Any suggestions? I was considering 2 anthem mca30's. Any opinions on other amps or even if the anthem would be considered a worthwhile upgrade from the rotels?

I think you should consider S7horton's idea of a Classe 200 for the front channels and then you can use an MCA30 for the center and surrounds. I assume you have a combo music/HT set-up. I have similar equipment for my HT setup (AVM2 plus MCA30) but I use the HT pass though on the AVM2 to run the front 2 channels to my MAC tube amp. My main 2 channel music setp-up is a MAC tube pre and amp. I listen to 2 channel way more than HT so the set-up is great. I've owned B&W speakers and also a Classe 200. I think they would be a great match. I'm not so sure the MCA30 is a great match for your B&W's.

Mike.