First why do they insist not using the very intuitive method of IceHud in seeing personal and target health, mana and cast, the most important information in the game for a DPS and Tank? Instead, most showing off their UIs, they use pitbull's unintuitive bars that show two flat lines. Pitbull and X-Perl are great for raid, focus and other info but for personal and target info strictly, a HUD is obviously superior. It's simply intuitive.
Second, I forgot.