Massive damage across a wide area of effect for one. Silver Banshee is probably the only viable threat from the Six. Deadshot's aim is going to be incredibly off when Storm does her thing. Gambit and Jubilee can each lay down suppressive fire on any of the members, to say nothing of Cyke's optic blasts. And Beast and Logan will just maul anyone dumb enough to wade in close.
This by no means is a stomp. Silver Banshee is the threat. In order for the xmen to win, they have to work as a team. If the X-men don't find a way to take her out effective immediately. She can clear the field by herself. If they don't, her scream will K.o. everyone. However, its not as simple as you imply because Jeanett brought back up with her. It can go either or.
No my friend the xmen are not >>>> than the secret six. Imo the secret six are also a close knit family. Sure they tend to disagree and argue. Put when push comes to shove, they always come out on top. As a team, they've manage to take on multiple villians, superheros's etc. They might not have much experience, but they are ruthless and will do anything to defeat the xmen. I also get that, the xmen are an establish team. But even so, they are going to have to work for the win. How many times have the titans, teen titans, justice league, xmen, avengers etc. Lost a fight even though they were working as a team? Remember teamwork isnt't everything.
I never said that the Xmen aren't a family or work as a team. Where did I imply that? Care to show me? All I was saying is that it isn't a stomp in the xmens favor. When dealing with teams you have to take into consideration every member. However, one member can win the majority for the team thus silver banshee.
Essentially everything you said though, while it may apply to the Six, could be said about the X-Men and to a greater degree. And while the Six have a good member with Banshee, true, the X-Men have increadibly powerful ranged combatants as well and IMO, far too many solid members for the Six to make up with Banshee alone.