Leveling up three characters is faster than you would guess from leveling up one. Because you can hand your higher powered weapons down to your alternates, and thus get higher powered drops. Plus you clear content faster because you've learned the fights with your first character. But maintaining three characters takes a lot more time than just maintaining one. So only make three, if you want the experience of playing the game with each character. Because you may find that you dont' like one of the classes as much as the others. Whenever I need to let a class go for awhile....its always Titan. Warlock and Hunter are a better fit for my play style and how I approach games. I enjoy playing Titan...but its a bit more "work" getting into that mindset for me So it was the last character I made...and is always the first one I set aside when I need to narrow things down. You may feel the same way about Warlocks or Hunters.