I don't know about leveling, but the equipment attribute system should be at least as complex as DD and BD (except for dropping durability, which is more of a 'make work project' than an addition to gameplay, anyway).

From the topic Skill synergy;
Originally Posted by Lar_q
The entire idea behind having a classless skill system is to acutally provide both skill combos and synergy. The philosophy behind all of this goes actually one step further - by allowing equipment/stats/items and skills to affect each other, you allow for a great variety of character builds, increasing the depth of your character development system.