Elsa's ice powers;
Can be uncontrollable
Can be sparked up by your emotions and well-being
Would frighten people and would cause them to be driven away from you
It's ice wtf are you gonna do with it puny human
Can cause death and/or injury
It's pretty though

Rapunzel's hair;
Heals wounds/Can help people from dying
Can only work if you sing the song correctly
Doesn't do any harm (Unless the wrong person gets their hands on it)
Could be used for other research on the human body by doctors
Really pretty ^^
(Some people may be scared by it too)

Dude, I could live forever! That's way better than throwing around ice and snow all day.

This gift is WAY more useful in the long run. (Ice powers aren't particularly useful).

This has been asked many times before. Anyways, I find Elsa's powers useless.

This looks gorgeous and can be very well used...besides it's cold enough outside!

I couldn't deal with hair that long.

Plus with ice powers I could become Supreme Empress of The World!
Silly mortals! Bow to me! Else you wish to live in a frozen wasteland!
Remember, the cold doesn't bother me anyway.
MWAHAHAHAHA!!!! >:D

EDIT:
Adding to that, even if I did kill off everyone and became lonely I could just summon a few Olafs or Marshmallows. The world is my sandbox!

Definitely.

truth76, I don't know about that, by the way thanks for telling me :)

I do not see the use in that hair!.....with elsas ice powers u could do a million cool things with good imagination! You could create beautiful things AND be like a super hero, plus I LOVE the cold and Im not worried about controlling it...plus with the hair, I think people would just end up trying to use me

I would love to have healing powers!

i cant stand long hair ugh

Unless it's not too long like hers.