Triple axle everytime for me, spreads out the weight better and pulls easier in my opinion. I also prefer the extra carrying capacity provided by the triple axle vs tandem axle. Someones worried about the cost of 2 more tires....really... your spending 75-80K on an RV so don't be worried about the cost of two more tires!! If that's all that was concerning me with purchasing an RV as to whether I would have to purchase 4 or 6 tires down the road, then I think I would hang up my keys and stay in a bricks and sticks house, but that's just my opinion. Get the triple axle and have fun camping and spending that extra $500 in 5 years, you won't regret it!!