Captain Marvel destroyed a bunch of ships on her own in one go with ease, so Captain Marvel wins against Vision.
Doctor Strange vs Scarlet Witch can be tricky, but since Raganrok shows he can open portals and transport a magic experienced Frost Giant real fast I think he might send Scarlet Witch away until she cools off and wins if he's lucky.
If Wanda gains House of M style powers in the new show then it'll be a different story but right now, Captain Marvel and Doctor Strange should win this. Hell, Carol might be able to win on her own.
Let's break it down:
Captain Marvel vs Scarlet Witch
Both have infinity stone derived powers and extremely powerful ranged attacks but Carol's flight, strength and extreme durability are huge advantages.
Wanda might be able to pull off a win if she uses her telepathy to mess with Carol's head and/or very ruthless use of her telekinesis (e.g. she tore out Ultron's heart). Carol is a fast moving, durable target though and she only needs to land one hit on Wanda and it's game over. Carol wins 8/10
Captain Marvel vs Vision
Carol is faster and has durability feats that suggest she'd survive Vision's mind stone beam. Strength wise we know she can compete with Thanos, the guy who ripped the mind stone out of Vision's forehead with his bare hands.
Vision's ability to turn intangible could make it a drawn out fight but he's not going to win. Carol wins 10/10.
Doctor Strange vs Scarlet Witch
Could go either way since they're both glass cannons more than capable of taking the other out in one hit. Wanda has greater raw power but Strange has greater versatility and experience. I reckon he wins 7/10 thanks to clever use of portals, flight, duplication etc.
Doctor Strange vs Vision
Vision is extremely durable, impossible to restrain because he can turn intangible and his speed/flight would give him a high chance of dodging any attempts to send him away through a portal. Meanwhile, one hit or mind stone blast from Vision would be more than enough to take out Strange. I give it to Vision 8/10.
And we're back !
I suspect this is more even than some might think.
Wanda has a real tactical advantage as she can read minds and if she's powerful enough to neatly kill Thanos she's capable of harming Carol. Vision also has an intangibility attack which potentially can harm Marvel.
Strange's shields have blocked direct Strikes from Thanos and he's shown himself able to deflect power stone blasts.
In a Strange vs Wanda battle I see Wanda getting the upper hand early but Strange using some clever spells to confuse her and possibly take her out - but she still might have sufficient raw power to take him out ( as Thanos did)
I go Strange 6/10
Vision v Carol is a bit less uncertain. I believe Vision's intangibility attack would be enough to KO her at least 3/10 times. Her physical strength isn't going to be as much of a problem for him as her photon blasts- but if phasing even partially protects him then he might survive long enough to take her out. It really depends on how smart he fights. Post Age of Ultron he doesn't fight smart at all - so only AoU Vision has the tactical skill to beat her.
I still give this to Carol 7/10.
I'll do Vision v Strange and Wanda v Carol a bit later.
Cheers.
Okay
Vision v Strange: if Vision lands a solid punch or mind stone blast Strange is toast. However, could Vision cope with Strange's magic ? Wanda could read his mind, so he might be susceptible to illusions and tricks - and Strange has shown some pretty neat effects against Thanos. Would his phasing work against the Crimson Bands of Cyttorak ? Maybe not. I see Strange with a slight edge due to his cunning and the unpredictability of magic, so 6/10.
Carol v Wanda. Carol has a big mobility advantage. However Wanda has been able to use her powers as an area effect - also Carol likes to get close up and personal. The big danger is getting close to deliver a punch and Wanda remembering that she has telepathy ( which she forgot in Civil War, Infinity War and Endgame) - and messing up Carol's mind - and if someone as resilient as Steve Roger's can be incapacitated by Wanda's mind manipulation then Carol likely will be too.
Of course Wanda has some amazing TK feats too, so if she does manage to grab Carol, she could probably at least squeeze her until she blacks out.
Wanda also seems to be a bit smarter than Carol - which compensates for Carol's superior training.
I would say either 6/10 to Carol or possibly a draw with eachnl winning 5/10.