aruto: Doesn't cost any chakra to go into one-tail form
Sakura: Doesn't take chakra from you when you are using your chakra fists.
Can heal herself at anytime as long as if you have some chakra
Kakashi: Doesn't take chakra when activating Sharingan.
Shorter time to wait to use Mangekyou Sharingan
Sharingan doesn't drain health
Gaara: Blocks unblockable atacks
gets Back Special Counter (Sand Coffin)
No chip damage