I nominate Ay, the 4th raikage!


At first, Ay may not be into the whole idea of running around and giving presents to everybody else. He'd probably just want time to himself and his own hobbies.
Now if you nag him hard enough about being a bad influence by not helping out, he'd probably throw a fit and just do it.

So how would he do it...? HE'D BRUTE FORCE HIS WAY INTO YOUR HOME! THERE IS NOTHING THAT COULD STOP HIM FROM DELIVERING THOSE SWEET PRESENTS TO EVERY NINJA IN THE WORLD!
HE'D BREAK YOUR WALLS, YOUR DOOR, YOUR CHIMNEY, SMASH THE COOKIES AND MILK ON THE TABLE; but ultimately, he'll come and show kindness to everybody evenly... UNLESS YOU'VE BEEN NAUGHTY! NAUGHTY BOYS AND GIRLS WILL GET A WHEELCHAIR AND A FREE TICKET TO THE EMERGENCY ROOM AFTER HE IS DONE WITH THEM!

In conclusion, he'd be the perfect fit, and he'd probably keep people from being NAUGHTY! Not because he would punish them, but because they would be ecstatic to see the jacked Santa raikage visit them.