I rewatched X3 again today with my daughters. My reasons for this are my own, but I took away two things from this rewatching that I hadn't previously.
1.) I was able to do MST3K running commentary through the entire thing, and it certainly enhanced my enjoyment of the movie (My daughters were able to join in to some degree, and a good time was had by all.)
2.) This is a spoiler if you haven't watched the movie, so you've been warned... At the battle on Alcatraz at the end, as Wolverine is fighting his way toward Jean, this revelation stood out, and once again, my Hugh Jackman loving 16 year old daughter pointed this out... Wolverine has magic pants. His skin, his shirt, everything, is being shredded. His skin is being peeled off, his clothes are gone, except his pants. His pants are there, and mostly unharmed. I for one am glad this was the case, and I am going to assume for the purposes of not accepting any other answer that my daughter is glad they stayed on as well, but they sure did survive, and at point blank range, while the woman was vaporizing everything else around her, his magic pants stayed on.