As someone with 4/5 i110 STR accessories and fully melded Ruby Rings, I can say that Ruby is the best multipurpose option hands-down. Without HA axe, optimized i110 gear, food, or potions I do about 310-320 DPS on a dummy solo over a 90 second period. Putting on a pure i110 STR set increases that by about 5-10 DPS under the same conditions.

Solo HP in Defiance with STR set: 7695
Solo HP in Defiance with i90 melds: 9053

The only offensive melds I have on Ruby are 10 Det per piece with the rest in VIT and ACC. The 80 extra skill speed from Ruby works really well for WAR because you can reliably sneak in an extra fully-buffed Fracture in your Unchained/Berserk/IR combo and still end it with Inner Beast.

People say that going full VIT while learning is the better option, but being able to deal enough party-wide DPS to push phases or kill adds quickly is more important than an extra 400-500 HP. But even worse than going full VIT is the failure of tanks to swap stances in Titan EX or T6. That alone would increase your DPS in fights about 40-50 DPS. I see a lot of burn party PUGs in T6 fall just short of clearing even when the DDs do a good job for their ilvl.

Swap stances and put some effort into your DPS and you'll be much more useful than your average run of the mill meat shield.