Alright, Static is working on t12 last phase, and I'm debating with one of my friends about who should go in. I personally think that the ranged should go in with OT, and that melee dps should focus boss down. He thinks that All melee should do the fountain, and have the ranged chill out and dps. He say that having the ranged do the Fountain would be too complicated because of Pinion, but for me, I don't see any difference in it.

TL;DR Should Melees do the fountain or the range?

Which one is better and why?