Andy would destroy Lombard the guy is like 5'6" and has shit striking technique and he barely looked good grappling against a guy who is terrible at grappling. Forget that though because Nate, Okami, Vitor, Chael, Belcher, Akiyama, Bisping, and Wanderlei all tool this guy he would never get close to the belt.
Anderson struggles against shorter guys and Lombard is 5'9". Remember Ryo Chonan? And Anderson wasn't winning that convincingly before the crazy flying scissor, infact I thought he was looisng before then.
Akiyama would tool Lombard? LOL. Wanderlei at this age, Bisping, Belcher would all struggle too.
Some of the top guys may give Lombard a tough test, but he is definately deserving of a shot at Silva given Silva has nearly cleaned out the division and nobody comes close to Lombard outside UFC (except perhaps a couple of the Strikeforce middles).