I think Silva is overrated.what has he done except beat down a declining Fedor? Is Arlovski really that superb of a win? Because other than that he has just been beat down by Cain, KO'd by Cormier and beaten by Werdum. He really isn't that impressive.
To be overrated you have to be highly rated to start with, nothing ive heard has suggested that - the wins you mentioned plus Browne should place him as "good" Lower top ten good.