Additionally Frost has been a host to the Phoenix Force and was classified as an Omega-level mutant when she went to shut down the Avengers Academy as one of the Phoenix Five (as a result of her hosting part Phoenix Force).
Emma Frost and Professor X have been called "Omega level telepaths." It is not the same as omega level mutant. They are alpha mutants. The term omega in their case means that they are telepaths of the highest order, with the most psychic power.
According to present X-Men continuity, there are currently 25 Omega-level mutants: Monarch, Iceman, Elixir, Jean Grey, Legion, Magneto, Proteus, Mister M, Storm, Exodus, Quentin Quire, Vulcan, Hope Summers, and the recently-introduced Krakoan mutants Isca the Unbeaten, Tarn the Uncaring, Idyl, Genesis, Redroot, the ...
Xavier is a more powerful telepath than Emma and wins majority, the level thing was just referred to the psychic defenses Xavier placed in Wolverine's mind and not his power as a telepath.
A gifted telepath, she also possesses the ability to shapeshift into her signature Diamond Form, which grants her near invulnerability and superhuman strength. Considered an Omega-Level Threat, Emma's power puts her on the same field as Jean Grey and Hulk, even though she often goes underestimated.
4/10 Wonder Woman's Resolve Would Break Against Emma's Power
Wonder Woman can face down any threat and it doesn't affect her at all. It's what she does best and it's allowed her to beat even the deadliest, most powerful enemies.
1/10 Be Demolished: Emma Frost
Both are cunning women who had earned their respect from their fellows through a lot of hard work, but Emma Frost is the clear winner if she had to go fight the Scarlet Witch.
Powers and abilities. Emma Frost is a mutant of enormous telepathic ability, and is also capable of transforming into an organic diamond state with enhanced strength and durability which suppresses her telepathy.
About Emma Frost
Emma Frost is an incredibly powerful mutant, with a brilliant mind to match. She possesses staggering telepathic abilities, and is able to transform her body into organic diamond, rendering her almost indestructible.
Powers and abilities. Jean Grey is an Omega-level mutant, and at her highest and strongest potential was fully merged with the Phoenix Force and with it was able to defeat even Galactus.
Jean Grey was the only Class Five mutant ever met by Charles Xavier (which implies Magneto and Pyro are Class Four), and her potential was stated to be limitless.
Like most so-called "Class 5 Mutants," Apocalypse is near-godlike in his abilities and their applications.
While an Alpha-level mutant simply classifies those that resemble normal human beings with combat-effective powers, Omegas are described as something much more powerful.
Weaknesses. Diamond Form: Emma was incapable of using her own telepathic powers while she was in her diamond form. Limited Durability: While Emma's diamond form has shown great durability, it is not invulnerable.
Type of Villain
Emma Frost is a fictional character who is a powerful telepathic mutant with the ability to have her body encased in diamond-like shell, and she is an antagonist (sometimes an anti-heroine) the X-Men series and within the Marvel comics. She is a long-time member of the Hellfire Club as the White Queen.
With Psychic Flames, Emma unleashes the Phoenix Force, destroying 4 selected tiles and dealing 1019 damage to the enemy team, then completely drain the team's Red AP, dealing 155 extra damage per AP drained.
The first recorded (with a clear date) human mutant on Earth was Selene, born in Central Europe 17,000 years ago, "after the Oceans swallowed Atlantis" and "before the rise of the sons of Aryas", during the Hyborian Age, and even clashed with Kulan Gath over 10,000 years ago.
An Omega-level mutant is one with the most powerful genetic potential of their mutant abilities. The term was first seen in the 1986 issue Uncanny X-Men #208 as "Class Omega", but was completely unexplained beyond the obvious implication of it referring to an exceptional level of power.
While the Scarlet Witch is one of the most powerful beings in the Marvel Universe, her greatest weakness proves even Spider-Man can beat her.
One of the most powerful is Chthon. Chthon has often set his sights on Scarlet Witch, as her massive power appeals to the beastly god, and he's possessed her many times. While the Avengers have always been able to break his hold over her, she has never been able to beat the god on her own.
Scarlet Witch is indeed powerful and has overpowered magical abilities that make her a threat in both the comics and the MCU. But the thing is that Dark Phoenix is a threat to the entire universe as her powers are cosmic-level. In that regard, it is easy to see why Dark Phoenix is the more powerful character.