I've not heard the RC-50's, but I do know that the Energy Veritas line is a bit similar to the Axioms. I'd say the Veritas were a bit "warmer", but both have excellent clarity and separation.

The closest speaker I've heard to my M60ti's has been the B&W 703 tower. That speaker sounds very, very similar to the M60ti. If you can give them a listen, you'd have a good idea what the M60ti sounds like.