The current overpower from rogues comes definitely from equipment. Cloak + Shoulders + Glaive Trinket are just nuts. Without these items, sub rogues were just in the middle of the pack. A Shuriken Storm with 30 Stacks of the Cloak and Shoulders results in a 5mil crit per target (if played properly under tourney server circumstances). The glaive trinket, which is already very strong, got buffed by the shoulders as well + by some rogue multipliers. Warriors on the other hand have the abilites ravager, battle cry and avatar which are already very powerful without the usage of specific items. The glaive trinket profits also from battle cry and avatar.