I can not tell you what is the best end game (a.k.a. future) line up for ninetails because I don't play CN version. However, I can tell you the best line up on this Kage Treasure version that we are currently playing. And this information is base on Server 1.
If you're looking to invest on Hashirama to increase your damage to ninetails, I would say don't do it. But if you have other use for him like main line up, ranked battle, etc... then go for it.
The reason I say no to Hashirama lineup for ninetails is because it's doesn't do much damage compare to anko line up(if you're using fire main). This is base on me playing in Server 1 and our #1 damage dealer right now consist of anko, firemain, iruka, and WB Asuma with 43K BP. The #3 damage player right now uses hashirama, fire main, iruka, and WB Asuma with 41K BP. Now, I do not believe that #3 damage dealer uses the hashirama line up the wrong way because Server 1 is very competitive.
Now you might wonder who's the #2 damage dealer. Well that would be me with 39K BP using onoki, fire main, iruka, and WB Asuma. If you want to learn more about this line up check out my guide http://forum.naruto.oasgames.com ... iewthread&tid=10349 This post was last edited by KiraHana at 2016-12-28 01:35