Strongest totem build for 3.2?

My Hiero is 86 at the moment, specced for SR indigon. Killing bosses is ok, but mapping has been really slow and become a chore.

At the moment I am torn between SR indigon (my current one), and shimmeron build (either arc - damn you mathil, or GC).

Could someone go over what's the main advantage/disadvantage between the 3 builds?

I assume, for boss killing, SR indigon is way better than the other 2. But for mapping, I guess arc is the best? While arc sucks really bad for single target/boss?

What about GC? And how would you recommend? I am building a BF champion for boss killer, and I have a wander for map clear. What should I build the hierophant into?