Originally Posted by plowking
Depends on which way you gauge it important. I've always found pulling up the most weight for one rep more impressive in an exercise like this. The heavier you are, the longer your limbs are, the harder it is for you to pull up.
I've stopped doing sets to fail with pull ups and instead strap on about 35lbs on a belt, and try to get 4-6 out. Haven't tested my bodyweight max in a while.
Are you looking to pack on mass? How tall are you, and what is your goal weight?
I'm aiming for a lean, relatively "normal" looking physique. That's why I'll probably never go for weighted pullups. Don't want my biceps and back exploding too much.