I did a five man run in the Mana Tombs this morning which showed me that I can still be successful with Survival. I came in second at the end of the run, but was first on the meter for a brief period about halfway through; the person who came first was the rogue leading the group. It's not a raid, no...but it felt good.
Me coming first about midway through the instance.
Second in the meter right after the fight with Shaffar.
So for people who are wondering; yes, if you get a nice weapon and have a tight rotation, Survival can be competitive damage wise, at least in 5 mans. This isn't the first time I've had this result. You do need high agility though, and although my agility after LR is 525 now, and about 450ish before, I still can't get my ap over 1200 without losing ag. :(