I leveled my Ele to 80 to play in the Staff Backliner role in WvW. What I enjoy about the class/role is weaving support for allies in with my personal DPS. I've been swapping attunements pretty frequently to spread buffs, DPSing, and dropping/blasting water, static and ice fields as needed to support allies. I'm still working on getting better at might stacking for allies (seems a little harder with staff than D/D). My stats are sentinel/soldier armor, zerker weapons and zerker trinkets.
Here's my dilemma: which runes? I'm considering a few different types, but I just don't have enough experience yet to know why to choose one over the other. Any tips?
more support: Hoelbrak? Pack? Or +boon duration? Or +regen duration? (I'm reluctant to stack healing power, since it seems so under-powered. But maybe together with regen/duration -- dwayna-- it's worth it?)
more personal DPS: Strength? (does the might duration apply to might shared with allies, too?)
something else: ???