The Ancient One vs Wanda:
Gonna give this to the Ancient One. One, the only evidence we have of the Scarlet Witch at least *theoretically* being more powerful, is Agatha, who is a massively unreliable source to say the least. Two, the Ancient One has at least a thousand years of experience on Wanda.
The fight is going to go the same way the last fight between the two went: Wanda pulls off some impressively powerful moves, the Ancient One counters them deftly, and then Wanda gets utterly blindsided by some esoteric attack she can barely comprehend that ends the fight. Only, I will be fair, given Wanda's greater exposure to magic and the weird aspects of her powers, I will say she probably does manage to counter the *first* such esoteric blindside. Not the second, however.
( Also, again, as a rough if slightly indirect benchmark: Dr Strange, who is almost certainly less skilled and powerful than the Ancient One at this point being a thousand years less experienced, managed a fairly prolonged fight against Thanos *with three Infinity Stones*. Wanda is certainly more versatile than she used to be, but as things currently stand she does not seem to be more *powerful* than she already was, she just knows she can use her powers for things more esoteric than the energy effects she did before. )
I disagree with you entirely.
First, The Ancient One is only about 700 years old. MCU puts her birthday at around 1317. Not that 300 years give or take is going to make much difference in a comparison of experience, I accept.
Second, just because the Ancient One was around a long time doesn't necessarily mean the was the most powerful sorcerer supreme- perhaps mystical threats during her tenure weren't particularly powerful. In Endgame she notes that Strange is " supposed to be the best of us."
You can at least infer that she suggesting that Strange will become a greater Wizard than herself.
Something supported by Wong's assertion that Strange had a natural affinity for the Mystic Arts.
My point is that the comparison with Strange is complicated, as it may be that by Infinity War Strange was the more powerful magician. There are many people who do jobs for a long time, but never progress beyond a certain level of competency, due to lack of talent.
Third, IMO the Ancient One's feats are not that impressive given that she is awesome against Chitauri ( so was Black Widow and Hawkeye) Kaecillius' thugs but ends up getting shanked by him. The astral punch is probably her most potent weapon, against a physical opponent- but that may not work as well against Wanda who is telepathic and telekinetic as well as magically gifted.
The Ancient One also had the Time Stone, which allowed her to see possible futures and do all the other cool things it allowed Strange to do - which probably accounted for some of her successes as Sorcerer Supreme. In this fight I'm assuming she doesn't have this.
Fourth, Wanda nearly crushed Thanos to a pulp. Using a similar attack against the Ancient One is a guaranteed fight ender because a) AO would be paste almost instantly b) like Strange she cannot, or at least has not demonstrated being able to, perform magic while restrained, that attack immobilized Thanos, so she's not going to be able to do anything in response.
Wanda's powers are not subject to this limitation- and can be used in an area effect.
Finally, the implication of AO besting Wanda is that Kaecillius could do the same, and I have great trouble accepting that.
Regardless, the poll will decide.