Ohai there! :)
As an up and coming Summoner (2k to 65 and Summoning Torque, Eclipse Bite and Nether Blast, yay!) I did some digging around and search-fu has failed me on a real comparison of the damage in Rages with Sacrifice Torque vs. Summoning Torque.
I began to wonder about it because as mentioned above, I'm closing in on 65 for Summoning Torque (I'm going to pick it up regardless) but also happened to have a Sacrifice Torque drop for me in the Puk ISNM recently and it got me wondering about whether Sacrifice was perhaps a better option for Rages (as long as my avatar's accuracy is good enough to be able to miss out on that 7 Summoning Skill from Summoning Torque of course. For higher-level stuff I plan on Summoning all the way for the accuracy.) Another SMN in LS didn't know, but he'd been debating picking up a Sacrifice Torque for a while and was as curious as I was about the answer.
Has any testing been done? I couldn't really even find any hard numbers on the damage increase from Sacrifice's latent much less a comparison of the damage difference in Rages between the two torques, any information or links would be deeply appreciated! (And feel free to sic Carby on me if I missed an obvious link.) ;)