Gilbert Melendez is the #2 LW in the world.. possibley the #1 after Edger failed to avenge his loss to the number 3 or 4 in the world.
He has the right to make this claim.
No he isn't, not until he steps up into the UFC and proves it. It's all well and good beating the likes of Thomson, Ishida and Aoki, but until he steps up and beats the likes of Edgar, Maynard, Sotiropoulos, Miller, Penn, Florian, Pettis etc he isn't the number 2 in the world. He's top 10, but until he steps up and joins the
elite 155lb division in the world I refuse to rank him Top 2. I rate Melendez very highly, he has a very impressive skill-set, the way he shut Aoki down was very good to watch, but he simply doesn't have the resumé to be ranked Top 3 yet for me.