I demoed the Triton two in a store and I own the Ultra towers. Before I give my opinion, I would say that if you really have narrowed it down to those two, you really should try to compare in your own home. I am assuming there is a Goldenear dealer near you, since they are only sold through stores. Most dealers hate trial periods or allowing returns, but if you press them, they usually agree to it, in one form or another. SVS has a risk free 45 day in home trial, free shipping both ways. So, that way you can decide which you like better.
I thought the bass on the Tritons was a bit bloated, but again, it was in a store showroom. They both have huge amounts of bass for tower speakers, so in that regard they are more similar than different. The GE ribbon type tweeter has gotten oodles of praise, but unless you had it side by side with the Aluminum dome of the Ultra, it would be hard to make a good comparison.
For me, paying more for the Triton2 was not worth it. The Triton 3 is actually priced the same as the Ultra towers, at $2,000. I think a pair of Triton 2s is closer to $3,000.
Anyway, again I would urge you to try a head to head comparison in your room with your amps. Oh, just do not mention to the dealer you are doing a comparison or they will probably really get pissed. Just say you really love them and you are almost certainly going to keep them you just want to make sure that, on the small chance it doesn't work out, you can return them.
Oh....if you do this, it would be great to post pics and let us know what you thought of the two models.