I love my AVM-2. If I had the $$$ I would upgrade to the 20 without auditioning anything else. For the money, nothing else competes. You can pick up a used avm-2 for under 1k, and probably 2k for an avm-20. Go for it, you won't be sorry.
Also, I really like anthems remotes. Simple, efficient and bulletproof. Beats the hell out of playing with a pronto or marantz 5000.
Finally, the anthem is so neutral sounding that you really will have to audition every amp with it since it won't color the sound a bit. I'm using an HK signature 2.1 but would like to move up to either an anthem or sunfire???