Tubes are really an individual preference and I normally avoid giving my customers advice. I know plenty of guys who absolutely swear by some of the tubes I like the least and they get great tone from them.
From current production, my two favorites are the JJ ECC83S and the Ruby 12AX7AC HG. They both have very good gain, are very quiet and reliable. Since working on amps is my business, those are very important things to me. Ironically, they are also 2 of the 3 tubes Randall used in the MTS amps as stock tubes. I have well over 150 preamp tubes in the shop (many are highly valued NOS) and for the money these are the best I have found.
For Power tubes, I have had great results with Ruby 6L6GC MSTR, Tung Sol EL34B, Tung Sol 5881, EH KT88 and JJ EL34L in both my own and customer's amps.