i just retubed with JJ 6L6's. like them a lot so far. i just got new preamp tubes yesterday and will be putting them in saturday. for those, i got a Mesa SPAX7 for V1 and Groove Tubes ECC83S for the rest. not gonna do the rectifier tubes right now, as i usually keep it set on silicon diodes.
i decided to go with the mesa/GT combo after talking to the owner at the local mesa dealer. he highly recommended the Mesa SPAX7 for V1 when i told him that i play a lot of modern/hard rock and metal.
so there's my $.02.