No, Fedor's best opponents > GSP's best opponents.
And wins over guys like Hardy, Koscheck, Alves and Fitch are looking worse and worse as time goes on. Who had Fitch beat when he fought GSP? Fitch landed a fluke upkick on Alves and had split decision win over Diego Sanchez. That's it. Then he went to the "minor leagues" and got choked out by a can (Burkman). LOL.
Don't get me started on Koscheck, one of GSP's oh-so-great opponents. Guy has lost 5 in a row (most of them by finishes, something GSP couldn't achieve).
And Alves, well, he's basically been a 0.5 fighter since he fought GSP.
GSP's opponents are so overrated it's not even funny.