Yes, as revisionist fanboys start piling on the X-franchise has given us at least four X-films I'd happily take over most or all of the MCU--First Class, Days of Future Past, Deapdool, and especially Logan--as well as three other solid superhero films in X1, X2, and The Wolverine.
I know after this sign of a total lack of confidence from Fox sadly means the cynics are going to get their way (and DP and NM will probably not be very good). But I will not pretend that the X-franchise is not an important part of superhero cinema, and one that has contributed to much of why it is so well respected today.
P.S. Saying you can't count Deadpool is ridiculous. It is part of the goofy, messy canon and is also a movie that Disney nor Warner Brothers would have made.