Yeh that's the right one.

sure ? cuz some told me that his ninjutsu is important too :L

maybe + nin - resis bc lightning main have immune :) or + attack - resis

Yeh he scales of Nin as well, but his growth in it is much lower then his Atk and you don't want to take away from defensive stats, unless you are not into pvp at all. Then you can just do +atk - defensive stat, for better world boss/strong approach and etc.

light is immune to what ?!
i didn't understand !

I did +atk / -res. All his std attacks are tai and with bloodthirst, it seemed like the better choice.

I also did +atk/-res when I played with lightning main. but it also depends on what you have as LM's talents.

Attack - def...thats the best since MB is protected by tank like hinata or kimimaro..all auto attack(taijutsu)goes to them...and MB dont need defense that much ...rarely hit by taijutsu..because he is always behind the tanker