If you are considering a Toy straight 6, the 7mge is good for about 190hp stock, or a bit over 200 w/intake and exhaust. The 7mgte is about 220 in stock form, w/intercooler tubing/turbo elbow/3" exhaust work and a boost of about 12psi is good for about 300hp, w/a lexus V8 AFM/550 injectors/upgraded ct26 turbo(57trim) running about 14-16psi boost along w/intake/exhaust work should be good for around 400+.
A 2jz should be good for about 220, the 2jz twin turbo nis good for 300 stock and 400 w/just a chip change.
The 22r(e) trans work w/both 7mge and 2jzge, if you want to go turbo in either engine you should opt for the 2wd v6.
If you have the funds and want to smoke just about anything you come across on the street or in the dirt, I would opt for the 2jzgte, it would be a complete sleeper.