Wolverine: great action scenes, loved Yukio of the anime hair and kicky boots. Viper was a little too Poison Ivy of that terrible Batman movie. Mariko was bland and yes, damsely, so it ticked me off when she kept saying that she could take care of herself.
So much better, miles and light years better, than the first stand-alone Wolverine movie, but still so many, maybe not plot holes, but definitely logic holes, to drive the Starship Enterprise through.
And for the last sequence, I found myself thinking "I'd really like a villainous monologue here to explain what the heck is going on". And then when I finally got it, I was saddened to see that it was grandad's last bid at immortality. I understood that he'd try on the above-boards with Logan, and accepted his failure. I didn't like that, in the end, he got stuck with the insane villain role.
Also, the brief span of time that I was into comics, the Wolverine stories with Mariko were my fave. So tragically romantic (at least to the teen that I was).
Also 2, half-inch bulging veins are disgusting. And Hugh's starting to get that old-man skin on his chest.
Also 3, I could have bought a profound emotional relationship more readily with Yukio. The second I saw her weird non-classical face, I thought "there's going to be a hot fantasy with lesser acting skills that will wind up being the love interest".