mccormack dna-225 vs classe-301 vs ??

Has anyone compared these amps? I am getting in a pair of JM Lab 926's soon and would like to eventually upgrade my Adcom 545 ii amplifier. In the showroom I switched back and forth between my Adcom and the Mccormack DNA-225 with the 926s. Maybe I'm smoking crack, although the Mccormack definately had a more detailed midrange I could have sworn my adcom had better bass. Would something like the Classe 301 be a better all around amp?

Also I would like to have balanced inputs which the mccormack doesn't have although you can get them for $2400 from smcaudio. But for that price you might as well buy an amp that already has those features.

What about the Pass x250? Its slightly more than I wanted to pay (used) but I saw some favorable reviews of it compared to the mccormack.

thanks