I guess you are refering to Sage mode. Sage or Hermit mode is when someone trained in senjutsu has made Sage chakra (normal chakra mixed with energy from the nature). In sage mode, ninjutsu, genjutsu and taijutsu are stronger, the user becomes stronger and a lot of things. Follow the link for more info.
Sage mode increases speed and strength and Sauske's mangekyou sharingan is used for ninjutsu and genjutsu. So I would go with Naruto.
If you really meditate hard, and put your spiritual power and blend them with nature you would be able to achieve sage mode, just make sure u put some makeup when you have accomplished sage mode, you want people to know your on sage mode for safety purposes.
If you think how strong chakra is without natural energy, it should make Naruto at least 1/3 stronger considering there's 3 types of chakra now.
sage mode
itachi is better than naruto without sage mode but with sage mode naruto is stronger and faster
Yes, he will have a sage mode . somewhat like the sage mode of his master, Jiraiya. He used it in defeating Pain.
no one
Yes. Sage mode increases the strength of all ninjutsu, genjutsu, and taijutsu of the user
I guess you are refering to Sage mode. Sage or Hermit mode is when someone trained in senjutsu has made Sage chakra (normal chakra mixed with energy from the nature). In sage mode, ninjutsu, genjutsu and taijutsu are stronger, the user becomes stronger and a lot of things. Follow the link for more info.
Before Naruto could master Sage Mode, JIraiya was stronger than Naruto. Now that Naruto mastered Sage Mode and controlled Kurama, he is now stronger than Jiraiya.
Probably Uchiha Madara
Well in my opinion a sage because jiriaya took down a pain in sage mode and when naruto is in sage mode he took down all of them exept for 2 or 1 I'm not sure but it's definetley a sage
naruto because hes in sage mode (sage mode is when u become 10 times stronger)
Naruto, non of the konoha ninjas can beat when his in sage mode.
Sage mode increases speed and strength and Sauske's mangekyou sharingan is used for ninjutsu and genjutsu. So I would go with Naruto.
Since they belong to different series we will never know