I'm not super fast at PLing, I usually do swarm pulls and DS mobs down. I have a Bard/SK/Mage with merc healer on passive in one group, 1 bard and all PLee's in another. I can get a whole group to lvl 80 in a relaxed 6-8 hours if my spots are open. I've never really tried to push the pace or have a great set up. I haven't PL'ed in quite some time but this was my path with DS killing until they could join my group.
1-20 in CR
20-35/40 in Blightfire, maybe a pull in stone hive if im doing bees
35/40-45 GE, Maidens eye, Dranik scar
45-55 Bloodfields
55-65 PoFire, CoD, BoT, Barindu, Ferubi. Wasn't a fan of WoS
65-70/75 Valdeholm, The Hive, DSH, could probably jump into fort mech after a few dragonscale pulls
70-80/85 Fort mech is good mob density, I'd like to find a better spot more out of the way
85-110 soon as they can group with the 110/115 I like EoK zones like FM, Lceanium (drachnid caves respawn super fast) or if my dps is solid HS/Sathirs/Overthere
At 110 is when I'd pop the krono, gear them a bit and exp normally in my spots to top out their AAs