The Tridents are solid RAM but I still stick with the ECO's low voltage requirement. It gives you overclocking room on the highend like the Tridents has the ability to decrease it's timings. The only plus side to the Tridents is it's abilty to run DDR3 1600 at Cas6 timings.
My other concern with Tridents is the height of sticks with your cooler. It is a large cooler and will take up a RAM slot most likely if it a tall RAM.