This is my opinion of course, but I find on this forum that if you don't like x2 and spiderman 2 then we will heavily disagree on comic book movies. They are such huge staples of the genre quality-wise and imo singer has handled ensembles far better than Whedon has. The latter doesn't really give an arc to anybody he just focuses more on team banter. Some prefer that but I found that got old kind of quickly.
Dofp actually had some interesting drama with the characters. It's something I feel marvel studios in particular usually falls flat with. Plus I can't even fault singer's action filmmaking either because nightcrawler/qyicksilver/blink are some of the best displays of superpowers I've seen in movies. Looking forward to what I feel will be his last xmen flick.
Edit; edited to make my comment a bit more PC lol