Fender Hot Rod Deluxe. 1 x 12" really loud 40 watts.
I have had many modeling amps/modeling processors and i feel...
IMHO, the Line 6 are alright, but tends to sound artificially the same after a while. I mean the sounds are decent, but when compared to natural tube overdrive there is still not the same nuances of natural tube overdrive. You hit it on the head as far as i am concerned when you said "I'd rather have 2 or 3 usable sounds than 30 or so not as good ones."
Since most gigs will be miced up anyway (Sennheiser 609 or 906 are good choices) then you really can't beat a small tube amp. 6L6 for smoother overdrive (rock, blues, country) or EL34 for a crunchy Marshall sound (which IMHO gets old after a while).
I am very pleased with my Fender Hot Rod Deluxe, after experimenting with different tubes and bias settings. Why model when you can have the real thing? Get a real tuber and you won't be dissapointed when your Line 6 sounds start to sound all the same/stale.
Pair up a tube amp with some true bypass effects (OD, Chorus, Delay) and you will be a happy guitarist. Legendary Tone, bro.