The pally targetable bubble on another toon... is a 50% physical reduction in damage.
I know my DK's basically blow through that one like it isn't there.
I'd imagine your hunters would be the same.
Pain Suppression would likely be the same then.

The issue is a primary target that can Iceblock or Self-Bubble.
But you already mentioned prioritizing who to go for first.

I like the burst.
Anywhere with long line of sight will favor the team, like the BG in the sewers.. if they jump off of the side.