I think even if you're going for a younger group for X-Men, Logan is still going to need to be cast as an older guy. Because regardless of the ages, Logan is still easily over a hundred. They originally had Russell Crowe as a potential Wolverine, and given his scrapper history, I'm not surprised.
To be honest I could see a lot of people going for the part of Logan. Jackman was what really started the whole prettyboy Logan phase. Before him, Wolverine was just a grizzled, beastly lumberjack type of guy. Plus I thought Jackman's built was a bit too small to play Logan, especially his arms. Logan's got those thick treetrunk like arms. Granted Jackman had good definition in his body, but he didn't have Logan's bulk.
I'm looking around and I think I'd go with Vincent Regan. I did a few google images on him. He's got a really good black and white pick that nailed the Logan look perfectly, IMO.
Height might be the only problem. Man, why did Logan have to be so short. It's hard to cast someone that's that short and actually looks menacing.
Zoe Saldana would not be my pick for Storm. I mean, I'm glad she's the new "it" black girl and all. If you don't know what I mean, if you look currently at all the leading black woman parts in the movies coming out, she's in a good amount of them. I remember before Gabrielle Union had simular exposure. Plus, Zoe is the same height as Halle is.
I went through all of you're guys suggestions for Storm. Iman, Zoe, I honestly think Nona Gaye had the best look for Storm. Plus she's got the height at 5' 10 1/2.
Also going to other people, I was thinking maybe Jamie Chung for Psylocke.
Christina Hendricks, could pull off an (adult) Rogue.
Emmy Rossum for Kitty Pryde. Actually looking at Rossum's photos now, I think she'd be perfect for the role. Honestly, I'd pick her over Ellen Page for the third X-Men movie.
In case you guys haven't picked on, I'm going for a more mature group. Honestly, I'd like to see Jubilee in the film. I don't know why they decided to give Rogue, Jubilee's type of background. I'm guessing maybe they wanted that type of character to play off of Logan. And instead of having Rogue be another secondary character and have Jubilee fill the role. They just axed Jubilee out and substituted Rogue.
Still have to look around for my Jubilee.
And Xavier is proving to be an elusive bastard. Stewart has been my personal choice for Xavier since i was in middle school. It's hard coming up with another choice.