Depends what kind of player you are. If you aren't willing to spend money, you'll more likely to use Sage Naruto over the regular one once you get Sage. Nine tails' is out of the question since it requires you to pay for his shards. If you are willing to spend a lot, then it depends on your team. Nine tails cloak work well water and earth teams but it requires him to be 3* or 4* and Sage is an universal ninja. Based on my experience with high paying players. they'll use a nine tails team over Sage.