Out of all of the X-Men films, I liked X-Men 1 & 2, First Class, The Wolverine, DOFP, Deadpool 1 & 2, and Logan. I also don't hate X3 and Apocalypse, but I can see why people had problems with those movies. I'm in the minority on that opinion and that's fine. Some range from being solid/okay flicks (X1/The Wolverine) to being one of the greatest comic book films of all time (Logan.) They had some stinkers (but so does the MCU) but they knocked it out the park on occasion too.
We'll see how Disney does with them since it's in their hands now.