High Luck can make for easy money grinding at casinos, but if that doesn't interest you then it is also a safe dumpstat.
Don't add anything else unless you want something specific, and add them one at a time.
Play the DLC in release order (Dead Money, Honest Hearts, Old World Blues and then Lonesome Road) starting at about level 20, then gain 5-10 more levels before moving onto the next.Lockpick, Medical, Repair, and Science are good. Hardcore is bad if you're using companions and not modding the game.
