BAT VK-60se vs Atma-Sphere M60 mkIII

I am considering buying a second tube amp system and am interested to know if anyone has a direct opinion/comparison for the BAT VK-60se amp vs the Atma-Sphere M60 mkIII amp.

The preamp will be the BAT VK-31 with superpack (not se version).

Speakers are Avalanon Eidolons.

I have read great things about both amps - am not able to conduct a trial - it will be one or the other.

Thanks.