Which amp would work best at getting great clean sounds and also great overdrive sounds ala Robin Trower, Warren Haynes? I'm considering a Budda superdrive either 30, 45, or 80, a Bogner Shiva, a Bad Cat Hot Cat 30r, a THD Flexi 50. Iwant an amp that is easy to set and forget. I also need an amp with great sustain, punch, and articulation. Thanks.