Which Lamm should I add to the flock?

I have a Classe' 301 amp, an Audio Aero Capitale C.D player which I use as the pre, and Piega P10 speakers. The Classe' had lemoned on me again, to the shop for the last time. I heard Tenor 75wp with this same setup, and it was beautiful. I am leaning toward the Lamm's, but this is where my ignorance shows. The ML2's or the ML1.1's? This is a major purchase for me (hopefully the last for years to come with amps), someday to replace the p10's. Thanks for any help and suggestions.