Which MTB Inner Tubes I have tried a few brands of inner tubes for off road riding, mainly slime and dr. sludge but recently I have suffered more punctures than I'd care for despite the 'green goo'.

My question is what are people's recommendations for good off road inner tubes or tubeless systems.
Maxxis DH or Freeride tubes.  They're not light but I've only ever once punctured the DH model - a 6inch nail through both side walls, so I won't hold it against them!