As long as you go with the Terminator SELECTS and not the standard Terminator shaft, I don't think you could go wrong either way between the two. The Term Selects tend to be much straighter when I've actually tested them vs. GoldTip XTs, however I have not tested nearly as many Terminator Selects as I have XTs, so my sampling is small comparitively.

Both shafts are tough, and weight tolerances are very good. Both arrows are a good value for the $

I would need more specifics on your setup to recommend a spine for the XT's, but you definitely want to go with the 60/75s in the T-Selects @ your draw weight.