infinity's 35% frw would be bigger than the 50 life on phoenix in that this build just cannot tank his and there's not much difference from having 2000 and 6000 hp when your best defenses are WSG and unshift/reshift on a 0 dr, 0 block, 0 defense, low resist build. But in terms of damage potential, assuming ravenlore the +% fire / -% resist would be:
facet sword/shield: +75 / -95
facet sword+phoenix: +55 / -103
infinity: +25 / -130 (-45 out of range)
so which one deals the most damage can be graphed pretty easily;
There are a
lot of times I kill people with geddon from offscreen or far enough away that conviction wouldn't affect them- wsg sure has that effect. So there's a huge difference when opponents are on low resist builds, but they all come rather close around 75% exactly, but none of them ever really gets a significant advantage over facet gear within reasonable resists, and if an opponent stacks 400% resists you're best off with facets anyway. So facets look best to me. The %frw on infinity might have been worth the consideration if it was a straight -85% instead of requiring you to tag the enemy.