Yet another good match this week.
I agree that this is a good battle.
Vision is a computer android that can alter his density to become intangible or extremely dense. He can also fly and can shoot energy beams form his forehead.
He is also superhumanly strong and fast. He is considerably stronger then Selene who can lift 1500 pounds. At normal density, Vision is class 60.
Selene has a huge list of powers.
She has immortality, telepathy, telekinesis, superstrength, can absorb lifeforces, flight, VAST black magic abilities, and fire manipulation.
She is at best a mid level telepath not even as strong as Ikaris who is conderably weaker then individuals like Cable, Emm Frost or Rachel Grey. Her telekinetics are on the same scale. She needs to drain an individual to take over their mind. This is what Marvel says about her telepathic abilities:
"Selene is a mutant with various superhuman attributes. She sustains herself by psionically draining the life force of other human beings into herself. Because of this, she is often referred to as a vampire, although she is not a true supernatural vampire, like Dracula. If she drains a person's entire life force from him of her, the victim dies and the victim's body crumbles into dust.
If Selene drains only part of victim's life force, Selene achieves a measure of psychic control over her victim's mind. Through unknown means, Selene can also cause a human being to become a psychic vampire like herself, but be subordinate to Selene's own will."
She does not take over people's minds like other telepaths such as Prof X or Emma Frost.
Regarding her magical abilities, the word vast is based on the one comment by Kulan Gath in an x-men comic when he said she was a threat. She has never had "vast" magical abilities. Dr. Strange, Belasco, or baron Mordro would wipe the floor with her. Her magical abilities have never been vast and marvel does not even state them as a power she has.
Another thing to note:
"It is known that great expenditure of power causes Selene to age, but she can rejuvenate herself by absorbing more life force."
Prep time, both are equal. Both would get info on the other. Vision would have the Avengers computer, and Selene is the Black Queen of the Hellfire Club and would be able to use their vast resources.[
I do not agree for the Avengers have much greater resources then the Hellfire Club. And the knowledge would allow the Vision to prepare in a way to make him immune to any type of telepathy. He would also be very wary of any and all the powers of Slene that he would know extremely well.
Now, teh location is a huge advantage for Selene. First off there are plenty of peope around for her to drain which heals her in seconds. Secondly, Vision can't go nuts on her bolasting away at everythign because of all the people that could potentially be injured or killed. he will still have to show restraint, and also probably have to help save innocents as cars explode near them and whatnot leaving him rather busy.
Yes she will be able to feed but when she does she is distracted and the Vision can surprise her while she is feeding. And there is no way she can heal fast enough from a hand through the brain. She will be unconscious. Also, lets not forget that this place is a city with technology and vision could merge with its systems. He could be everywhere and anywhere. She will not find him unless the Vision wants to and if he has to, he will use all the forces of the place which he can command digitally to bring her down.
Now Selene won't go looking for a straight up fist fight, it's not her style, plus it would be difficult to anyway since Vision can become intangible. Instead, she will start using her dark magic.
This is something vision is very susceptible to. Even if he is hard as a diamond or intangible, he could still easily be incapacitated by a mystical spell. It's technology vs. magic.[/quote]
She has never been a great master of dark magic. She can do magic but not something that will affect a very big area. And unless she sees Vision, she cannot cast magic on him. She has never shown any great sorceress abilities that make you presume she could do an all encompassing spell. All of this is based one statement in one comic or two (x-men 191-192) where she was considered a threat to Kulan Gath. Surprisingly, however, none of the other great magicians ever think of her as a threat.
Take into account that Selene is more than willing to kill Vision and she has a damn good chance.
This could also definately sway the battle over to Selene as she is a telepath.
Selene has just too many options in this battle and Vision is too hindered by the innocent people.
Vision is will do what is necessary to win and he will know exactly of all of Selene's powers. He has faced her before (the Avengers were featured in the x-men 191-192 comics). He will be perfectly prepared for this battle and the prep time willl allow him to make sure he is immune at least to telepathy which based on the above is in doubt. He has no life force for her to drain.
Plus when she is feeding, she cannot do other things and as such Vision can surprise her. One chance is it all it would take as she has no defense against a hand through her barin.
Winner- Vision
. However, I am not sure her psychic awareness would allow her to penetrate the cloak of invisibility when he goes completely insubtantial. 
