Celestia said she'd never seen anyone with so much rare magic potential.

Twilight FTW!

Well, I heard somewhere that she is the MOST MAGICAL PONY EVER so... yeah. And I really don't think Twilight Sparkle can RAISE THE SUN every morning and lower it in the evening.

^ Yeah I agree with tinkerbell66799. She IS the most magical pony ever. I heard it in a lot of places. And you are right again. I really don't think Twilight can:
Raise the sun in the morning,
Lower the sun in the evening,
Rule Equestria,
Live over 1000 years,
Open the safe where the elements of harmony are kept,
Banish somepony to the moon,
Use all the elements of harmony without the help of her friends,
And turn somepony to stone!!

Princess Celestia can do all those things. Twilight Sparkle can't.
I would also vote for Princess Luna because she shares some of the magical abilities that Princess Celestia has. Like raising the moon and lowering it. And living over 1000 years.
I mean, I love Twilight and all but... yeah.

Well, seeing as Celestia is the ruler of Equestria...

^ you two are right. Even though I am confident with my own abilities, and amazed by Twilight Sparkle's magic, my vote still goes to my aunt Celestia.Even I can't do all the things she does.
@tinkerbell66799, I know that as well. I don't know anypony else with her magic ability.
@kittensrcute54, I would have listed all those things if you hadn't
You are very correct. I don't think she could ever use all 6 of the elements of harmony without her friends there with her. And I ABSOLUTELY don't think Twilight Sparkle could live over 1000 years or turn somepony to stone. And I think if Celestia had seen the Ursa, she could have sent it back to it's cave lickety split.

And shadirby, you are right too.

Seeing as Twilight is the Element of Magic...

Princess Celestia is the most powerful pony in Equestria. Period. No contest. Seeing as she banished Luna to the moon and used all the elements of harmony all by herself... I don't think Twilight Sparkle can do even HALF the stuff that Princess Celestia does! I read somewhere that she is the most magical pony ever. Even thought Cadance, Luna, and Rainbow Dash are great with their abilities too, my vote still goes to Princess Celestia.

^ Right. Princess Celestia is the most magical and powerful pony EVER of all the most powerful characters in the world. END OF STORY.
I don't know why you guys are all picking Twilight, because compared to Princess Celestia, she barely has any magic at all.

Well, Celestia is over 1,000 years old...

Or Luna.

4th wall breaking > every other ability