As much as I love Luclin, I do wish VT bosses were more than just the endurance checks that they are.
"what do we do about the final zone" "fuck it copy and paste everything, give it 1 million ac and call it finished"
VT is simply a reward for the PITA shard/keying process to get there. It is essentially candy-land. I was actually thinking of SSRA (although Emp is essentially a coordinated endurance fight), Shei, Burrower, etc.
When our whole guild was 60-65, after about 3 VT clearings, we were AEing VT. This was during pop, and some people had some ornate gear. No elemental armor though. Mostly SSRA gear + Velious armor. Clerics, Wizards, anyone with AE spell, or a rain even, would all go at it. Had around 5 chanters. Doing with raids of 50-60 chars.