My favorite game is probably Guild Wars. The max level was 20, and most of the gear was the same. This meant that skill and technique was more of a factor than just grinding to get the best gear. You could grind, however, for skins and stuff like that. I just loved the game so much and the PvP was amazing, from arena 4v4 (?) matches to guild vs guild (8v8) matches. There was a lot of depth and combinations of builds to try, since there was a dual class system.