I’m leveling a mage first. I figure they have some of the better gold-earning potential in the game, and I’ve never leveled one before. While I’m being careful, I do expect this toon will die before I hit 60. He’ll be a tailor/enchanter.
With that in mind, I plan to stash BoE pieces of mail and plate (with enchants) while I level, and then feed them to a paladin. That might be the toon that makes it to 60 in one piece.