A tank usually beats a Zerker because of the fact they'll be shredding the Zerk while not taking much damage in return even if wearing only void. The game is also more open to you as a Range Tank in terms of quests, achievement diaries, and PvM content. If you're interested in clanning, Zerk/Range Tank is pure preference as most mid-level (i.e. Zerker) clans also accept Range Tanks due to the nearness of combat levels. It's really up to what you want to do, if you're only planning on PKing you may as well make a Zerker as you'll be able to utilize both melee and range in 1v1 fights depending on what you feel like. However if you want to do more beyond 1v1 Edge/BH pking you're probably better off making a range tank. GL. Edit: full disclosure - my account is a Zerker build.