Amount of Servo torque - What would you consider the best for...

[What's_nitro?]

I dunno if I can be much help, since I've paid at least $110 for every servo I've bought!.

I would say:

1/10th scale 2 wheel drive (RC10GT, Rustler, Jato): 80-110 oz/in

1/10th scale mini-truggy 4wd (crt.5, ls10, DST): 80-120 oz/in

1/8th Buggy 4wd: 100-175 oz/in

1/8th Truggy - Muggy: 130-200+ oz/in

E-Maxx - Revo - Savage - LST (Single servo setups): 120-200+ oz/in

The only thing I would consider "overkill" is the Hitec HS7955TG. That I'd say is mainly for large crawler use.