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When Kurt teleports with people it puts a strain on him and the person with him (but mostly the other person). So Rogue grabs WW and starts doing a fast teleport. Rogue would need to do a lot of these ports in order to hurt WW. But that is where Wolverine's healing powers come in. They can help Rogue with dealing with the strain. Lastly Cyclops' full power can take down mountains. WW is strong but that strong I hardly think so. So what Rogue would need to do is port a lot, then blast WW with Cyclops' full power. Rogue can use the people's powers in a combo. And has shown to be able to use them better then the owner.
Rogue wins.
 

Was I smoking a bad batch or didn't  Crystal and Invisible Woman already fight once? If I remember correctly Sue had to step down because she was pregnent, so Crystal stepped in. The problem was after the baby was born, Crystal liked being apart of the team. And since it is called Fantastic Four and not Fantastic Five the 2 ladies fought. And in the end Crystal kicked Sue's butt (I can't find that issue, but if anyone knows it let me know).
As for Storm vs Black Bolt. I heard that Crystal was able to move the air currents around so he was able to speak (though if this is true, why doesn't she always do that for him all the time) with out his voice being a problem. If Crystal  can do this then Storm should also, unless that means that Crystal is stronger then Storm in air manipulation. 
So Crystal takes out IW. Storm takes out BB. Whats left is Storm vs Crystal. When it comes to weather control Storm most likely has the upper hand. But there is one problem. Crystal can use fire, air, water and earth, and use them in a combo. This could cause a problem for Storm. So after a very long and close battle between the two, Crystal would barraly win.

But can Jean stand the heat, and preshere of fire coming at her? When Crystal and Sue fought over who was going to be on the FF  Crystal kicked Sue's butt, Crystal was able to take the air out of Sue's force-field. I don't see why she couldn't do the same to Jean. As for Jean's TK yah that would be a problem but Jean needs to consintraite, hard to do when someone throws fire, water, and or wind at you. If kid Storm can bet Jean then so can Crystal.
As for Crystal vs Storm. They practicly have the same powers, the big difference is Crystal can use also fire, water, and Earth as well. All Crystal would need to do is get a good size amount of earth put it over Storm, then to make sure that Storm is dead, throw in some lava from the earth's core. If Storm throws lightning at Crystal all she would have to do is get a good amount of earth over her. Then counter with any combo she wants.
Stop making Crystal seem so powerless. She can stand on her own, and more then a match against many people who have gone against her.