You don't have to wait for Octopath to get good. Combat system is instantly gratifying and continues to progress.
In the long run Xenoblade 2 is better - but the first 20-30 hours of gameplay are a real hassle to level everyone up to the point where you can do interesting and fun driver combos. Biggest mark against Xenoblade 2 up to that point is that your art usage generally doesn't make a difference in battle. Torna did a good job of speeding up that progression though.
I predict NX launches in 2017 - not 2016