ok, here are the facts and you make your own decision.

1ggte= never in the US, only 2.0L and only makes like less than 200hp. in Japan this was the base model supra's engine. absolutly no aftermarket support here in the US.

1jzgte= ok, comlpete aftermarket support and oem parts support here in the states. makes almost 300 to the wheels stock, can be made to make 1000hp.

the 1ggte would be a neat swap for something smaller like a corolla or celica. but to push a 3500lb+mk3 around you need power and TQ which the 1gg doesn't have. i would have to say that i would most definitally go with the 1jzgte no questions asked. in japan the 1gg is a different story because they were put in everything (due to the over 2.0L tax) so they made a 1gfe, 1gge, 1ggze, and the 1ggte.