5 Inhumans Vs. X-Men Fights We Want To See
Marvel Comics is getting set for its biggest cross-franchise showdown since Avengers vs. [...]
Ms. Marvel vs. Jean Grey
This is a battle between Ms. Marvel and Marvel Girl. Kamala Khan and Jean Grey are among the most icons heroes for their respective sides and are generally considered their youthful hearts as well.
Some of Ms. Marvel's Inhuman mentors will have to teach Kamala how to shield her mind from telepathy or this would end up being a quick matchup, but that's certainly doable for the Inhuman Royal Family.
Once that's out of the way, it comes down to Ms. Marvel's embiggening powers and healing factor versus Jean's telekinesis. That sounds like a battle bystanders will want to keep their distance from.

Karnak vs. Old Man Logan
Karnak is perhaps the deadliest and most skilled fighter of all the Inhumans. Having the ability to see the flaw in anything certainly helps in that department.
Old Man Logan is almost without question the deadliest mutant alive and the most skilled fighter on the X-Men's roster. His healing factor may have slowed with age, but it's still there, as are his razor-sharp adamantium claws.
Both of these characters are responsible for training younger members of their respective actions. If they end up facing each it may become something like the unstoppable force meeting the immovable object. Can even Karnak find the flaw in Old Man Logan's supposedly unbreakable adamantium skeleton? Hopefully, readers will find out.

Crystal vs. Storm
The Inhuman master of the elemental control takes on the mutant weather witch.
Crystal is a member of the Inhuman Royal Family, but she's really stepped up into a leadership role since the Nuhuman boom began. She's even led a team of Inhumans on a globetrotting mission to welcome Inhumans who have recently undergone Terrigenesis into the family.
All of that is old hat for Storm. She's been leading the X-Men for years. She even beat Cyclops for the privilege, and she didn't have access to her mutant powers at the time.
Crystal and Storm both have powers that allows them manipulate the physical world around them in unique ways. Let's see who is best at it.

Black Bolt vs. Magneto
The King of the Inhumans squares off against the one-time ruler of a mutant nation. Where Black Bolt is, by necessity, a man of few words, Magneto is prone to proselytizing. However, they both take their responsibility to their people very seriously.
Black Bolt has been forced to show restraint with his powerful voice or risk killing countless innocents. Magneto has shown that he's willing to do whatever it takes to save mutants. The difference between Black Bolt's restraint and Magneto's willingness to get to hands dirty may be the deciding factor in this clash of titans.

Medusa vs. Emma Frost
The Inhuman Queen vs. the White Queen. The stake of Inhumans vs. X-Men are huge for both sides of the conflict, but they are perhaps no more personal than for Medusa and Emma Frost.
Thanks to Emma's actions during the events of Death of X, one of the Terrigen Mist clouds is now gone. That all occurred on Medusa's watch as leader of the inhuman nation, and that's not a slight she take lightly.
But Cyclops perished during the conflict, and that's nothing something Emma is likely to place. Rightly or wrongly, she'll probably be laying blame for Cyclops' death at the feet of the Inhumans, and specifically at their queen.
