From my own experience using the same HT system for music is too much of a compromise for audiophiles, but of course as they say, ymmv. If for HT only, I wouldn't bother with Anthem or Emotiva at all after experiencing going from an AVR to two separate systems, including the ex Marantz flag ship prepro, and a few power amps including Anthem's. For movies and live concerts, it isn't hard to reach the point of diminishing return, diminishing to the point they do sort of sound the same..
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That point would be the likes of AVR-X4300H, Yamaha RX-V2060, Anthem MRX-720, SR7011 etc., as prepro and surround channel amps, plus a 2/3 channel power amp.
If it has to be between the two brands you listed, I would go with the Emo, assuming it costs much less. If you are prone to hearing what golden ears hear then go with the Anthem.