The Wolverine. It was alright.
Wolverine, as a character, does not work very well solo. He works well as part of an ensemble, with the rest of his mutant teammates to bounce his personality off. Without having established characters around, he's a bit flat. There's no one to offer a predictable response, or to provoke him in a predictable way. I'm in favour of trying new things, but sometimes a little bit of familiarity can go a long way.
Also, does every film these days need a giant robot?