Board Thread:Theories and Speculation/@comment-33202319-20150622205123/@comment-26275777-20150630235410

I don't think mere power is a great judge of usefulness in the Naruto universe. They're not always going to be fighting ten-tails-sized behemoths in a conveniently open and relatively empty battlefield. All the giant, mountain-range-destroying variants of Rasengan and Rasenshuriken are useless when you're fighting in a village or near a settlement or anywhere really that's not the Fourth Shinobi World War battleground. On the other hand, the simple assassination technique will always be usable, even if you might need to set it up with another jutsu first.

It shows in the Gaiden, Sasuke's been able to show off his moves while Naruto has just been standing around because almost all his techniques are too flashy or destructive to use in a peaceful forest with two young children around.