I'd go for Hero as it is from the ROG series which meant for the gamers. Has better overclocking ability, better sound chip and lots of cool features that the gamers would use.
Whereas
Sabertooth is meant for people who want better durability like better 5 yrs warranty, higher lifespan of the components etc. it has dust and thermal armor and plenty of thermal sensors.
But in real life these things are rarely needed as a good case with dust filters keeps most of the dust out and good case fans are enough to keep temperatures low. moreover nobody keeps their systems more than 5 years now as technologies are changing very fast.