I know swick was top ten when hardy beat him I just don't know how high he was. That and fighting for the title is more than bisping has ever done. I wouldn't actually rank hardy over bisping but an argument could be made only because bisping lost every big fight he was ever given.
So Hardy is better than Bisping just for beating Swick? Still people discuss about who is better, Bisping or Okami, and Yushin also beat Swick and its not even among his best wins.
I think Bisping has competed better than Hardy at the highest levels for a longer time.