If you measure being a good actor by being a lead role in many, many films, I can't help you. You either don't understand my argument, or you don't understand acting, or both.
I didn't say Bentley was great, as in one of the greats. I said he was fantastic. Fantastic like, James Marsden fantastic. He's a good actor who is mostly very good in his roles, whether they're small or not. Entertaining. Etc.
I also didn't say that Wes Bentley wasn't bad in GHOST RIDER. By all accounts his character (or he) was awful. All I implied was that one bad performance doesn't make him a horrible actor, and that he is in fact a very talented one. If we wrote off actors every time they gave a bad performance, almost everyone would be written off by now.
And I'll wager dollars to donuts that Cage, Eliot and Fonda had much more to work with than Bentley did. Because that's also something that all accounts point to about GHOST RIDER. And that sucks. But it's not indicitave of Bentley as an actor overall, and to make that assumption would be making an enormous mistake and denying yourself some good performances.