Forum:Advice on All Playthroughs?

I've played Borderlands for a while at friends house's and such, beating both playthroughs and such, but never any of the DLC's. I just bought the game of the year edition of Borderland's for myself(all four DLC's), and am wondering what is the best/ most enjoyable way to go about completing all of them. By this I mean, the best order to go about completing all of the playthroughs and map packs (enemies not too hard or too easy, storyline matching up). There probably isnt a right or wrong answer to this, so just post your opinion please, thanks!