What matters more: An actor looking like a character (depicted by probably three dozen or more different artists over time), or an actor actually playing the character well?
Obviously, what matters is the latter. But I'm saying that, if possible, it would be nice to have both. Not everything has to be a zero-sum choice. We've already had an effective leading man who wasn't all that similar to Wolverine; if the role is recast, obviously they wouldn't just abandon any interest in good acting in favor of a physical match, so it's a straw-man argument even to propose that. Of course they'd look for another good, charismatic actor. But there's no reason in principle why that actor couldn't be closer to Wolverine's type.
And I'm not just talking about appearance, I'm talking about personality. Maybe I've been spoiled by Cal Dodd's fantastic performance as Wolverine in the '90s animated series, but to me, Jackman has always seemed too civilized, too tame for Wolverine. He can get growly and angry, but he's never quite captured that sense of inner ferocity and turmoil that Dodd achieved. Jackman did okay as Romantic-Lead Wolverine, but I'd like to see someone who's more of a character actor play a less glamorous version of the character. Someone more in the vein of a Sharlto Copley, say. (I always used to think that Michael Hurst of
Hercules: The Legendary Journeys could make a good Wolverine. He's short and muscular, and he's a fantastic actor. Before HTLJ, he was famous in New Zealand for his Hamlet, so he must be good at anguished, tragic antiheroes.)