Very few builds can facetank Cally, usually needing a ton of phys res and pierce res overcaps, so I wouldn’t set that as a benchmark. Outside of her, facetanking Ravager and killing Crate quick enough that you don’t really need to facetank the full time is fine, and rest of celestial bosses being skid marks is possible.
And there are a ton of differences, some that put out huge aoe damage with enough single target to be fast, or big single target with enough aoe to be fast. Based on your verbiage I assume you are more interested in the latter.
Beyond dps, movement skills have huge impact on clear times for crucible and SR, so something with less damage but vires might for example may have a faster time. Also assuming this isn’t what you’re looking for.
I’ll self promote I suppose with Evoker vindi [1.1.9.2-1.1.9.6] Bullseye - Evoker of Elgoloth Vindicator | SR75-76 | CR ~4:30 | Ravager | Crate
This is a top tier single target obliterator with enough aoe from passthrough wps to quickly clear trash as well. It’s not the only top single target DPS option, but I don’t think some of the other current ones are posted on the forum. I have a small update to add to that that increases tankiness thanks to lee and the toxic russian build channel, but it’s plenty playable as currently listed.