WWF attitude era had really interesting storylines, and nice HOLY SHIT moments like Austin dropping HHH when HHH was in a car from a crane.
And of course, who could ever forget the spray of water WCW got from Kurt Angle and Kurt downing like a gallon of milk?
But the match quality in WWE is much better than WWF. I would prefer Attitude, as I don't watch wrestling for the moves, I watch it for entertainment.