Personally this is what I think each class would be the best with.... Hunter: no question about it.... PvP is the best way to go. That lovely Golden Gun is a beast!!! Warlock: Got any backup plans? Strikes and Raids are perfect for this class. The lovely Radience ability is so helpful when strolling through enemy after enemy. Titan: Hulk Smaaaaash!!!! Perfect for going in and wiping out a team of guardians in the Crucible as well as holding the upper hand of a Raid. Devastating shock waves will leave enemies running back to mommy!