Re: Tech 21 Trademark 60 VS Line 6 Flextone
For what you're doing, definitely the Tech-21.
Personally, I prefer the Trademark-30, as it has a different preamp than the 60. It's a lot higher gain, and can get into some serious metal territory. The 60, meanwhile, is lower gain, but is also one of the most organic souinding (and feeling) solid state amps I've ever played. One of the best SRV tones I've ever heard came from one of those and a stock Mexi strat I picked up in a music shop one day.
It won't do uber-high-gain, but it sounds like you don't need that, just rich cleans, smooth leads, and some good rock-y crunch or growl. The Tech-21 excells at that stuff.
It's also WAY lighter than a comparable tube rig, lol.