Your TZ Boss performance

Depends on how awake I am.

Generally speaking, if your goal is pure speed for safe and reliable boss farming, a properly built

Fireball/

Meteor sorc is about as good as it gets. The only thing competing in travel speed is a barb or other sorc builds but those can't quite keep up on boss kill speed. Barbs just take too long to kill. Blizzard gets f'd on the "does no dmg" bug too often. Other cold builds just don't kill as fast.

Hydra has higher theoretical max dps but requires time to place the hydras which isn't worth it for simple boss runs. And lightning does come in a very close second but still can't quite out-boss-kill fire (gains a bit on

Baal waves as

Nova but loses on bosses).
Spent plenty a ladder season setting records with that while I still bothered with 'versus runs'. ^^

That said, currently, I'm using my lock for everything. In part for the novelty but more so simply because he's still half a level behind the rest so until then, he gets priority.
Shreds everything no problem but obviously can't compete with a sorc. Cast rate just isn't the same. So he is a tad slower all in all.

Even with his slowdown though, Andy, Meph and Dia can all be run in well under a minute so >30 a rotation.

Baal is sadly often closer to 2 minutes due to a crap map and that forced delay between waves so about 15-20 per rotation, give or take.
And

Duriel just varies massively based on the maps. Probably averages out around 20-30, give or take, but I never quite paid attention to the actual timing for that one beyond "DAMN IT, LAST ONE AGAIN! TAKING FOREVER! U SUCK

Duriel!". ^^