Well since you mentioned the ASR Basis Exclusive, I will provide some input on that particular phono preamp, and how it relates to one or two of the other phono preamps referred to by one of the others.
The ASR is the best phono preamp I have heard. It is quiet, dynamic, and musical. (Feel free to substitute P.R.A.T for musical, or whatever term you refer to as that certain something that gets your toe a'tapping!) It elevated my friend's system to a whole new level.
It clearly bested the Aesthetix Rhea. The Rhea has some really nice, user friendly features (the remote control is incredible!), but sonically, it is not in the same class, IMHO. The Rhea has quite a bit of tube noise, that with tube rolling, can be reduced, but not quite eliminated. This noise floor prevented it from really acheiving top notch status. (However, for the money, and especially if you like running more than one tonearm, and auditioning different cartridges, it is a reasonable choice.)
I have heard the Lamm LP2 as well. It is a very good phono preamp, but having its gain and loading fixed, very much limits its use, IMHO. (However, for a tube phono preamp, it is amazingly quiet, surprisingly so!) That being said, I would never buy it myself, as I prefer to have more flexibility as to which cartridges I can use.
(I preferred the ASR to the Lamm, as it was easily adjusted to match the cartridge requirements, although I feel the Lamm is better than the Rhea sonically, but only if the right cartridge is used, and there are few cartridges that are truly "right" for the Lamm.)
My two cents worth anyway.
BTW, are you actually in the market, or just opening up a topic for discussion? (I don't care either way, as I like the topic and the discussion!)