Rogue 12 Ranger 6 Warlock 2
Rogue 13 Ranger 6 Monk 1
Damage Comparison
The four different modes are:
Epic - All boosts including epic moment
Full - All boosts except epic moment
Partial - Haste Boost only
None - Just auto attacking
The damage numbers do not contain personal debuffs like Taint the Aura, Fetters of Unreality and Shadow Loss. When you factor those in, the Warlock split comes out ahead for both personal and group/raid damage. The Monk split has the advantage of bypassing slashing and bludgeoning innately with the second Arcane Archer core and a large amount of fire absorption, but that's not too relevant in the current endgame meta.
If there's no one else who can apply Shadow Loss against raid bosses, then lead with Shadow Strike then use Hunt's End + Manyshot thereafter as the Epic Strike. Shadow Loss has a 5 minute duration.
If you've previously followed my bow guides, there's nothing new here.
I constantly field the question "What about Arcane Archer?" In a nutshell, the tree hasn't been updated in a decade and it shows. The 25% doubleshot, Arrow of Slaying and 9d6 Elemental Arrow with 645 spellpower does not overcome the 80 Ranged Power, 1 Critical Threat Range and 21 Marked Target damage deficit compared to Horizon Walker. To reach functional DCs with the active attacks in Arcane Archer, you have to be WIS based which continues the downward spiral. Arcane Archer is fine for leveling 1-30 (as are many builds), but it has no place at the current end game in high skull reaper content.