I'm not so hot about Storm and Iceman being on the same team together. Storm's powerset overlaps his big time making Iceman's powerset redundant. Being the Storm fan that I am, I hate that. It usually equates to Storm's powers being reduced to only firing lightning bolts with the other aspects of her powers being ignored to make Bobby's powers relevant to the team. I hate to see Storm's powers weakened to prop up other characters. I say keep Storm and dump Iceman since Storm's powerset is leaps and bounds ahead of his in what she can do.
Ororo, Kurt, Old Man Logan and Colossus are golden, though. My favorite X-Men lineup of all time was Storm, Colossus, Wolverine, Nightcrawler, and Shadowcat. Add Bishop and Gambit to that mix and you'd have the perfect X-Men team in my book. If you want, you can swap Sage for Shadowcat as I like them both equally.