I've been left on the trail almost every time I've been in an argo. I've never owned either but been hunting with friends that have both I'd go with the terra jet.
Argos are a good idea just to much maint. for me.Also too low to the ground.
If I'm going out with anyone in an argo I will bring my own ride out. JMO
I have used an Argo 8 x 8 before and would only recomend this unit it if I really hated you. We had both an old unit and a brand new unit and if you really like walking out of the bush every time go for it. One thing is they had tracks on them which causes extreme stress on the axles. Constant maintenance. rought ride, exhaust comes into the cab, gutless.
The 6 X 6 with out tracks would be a better unit,(less rolling resistance) but still these units are constant maintenance, make sure you get extra tensioners, chains, and chain lube thrown in on the deal. I have no comment on the Terra Jet. sorry.