Freddie Mercury was great, but he's dead. Paul Rodgers has a fantastic voice, as did Freddie, but the 2 are very different, and cannot be compared.
Bohemian Rhapsody was a terrible song, and the lyrics were utter nonsense.
I saw Queen with Paul Rodgers last month, and they were brilliant. Brian May was energetic, played virtually non-stop, and they were well worth the £50 tickets. Paul Rodgers..........a real rock voice. Raucous, gravelly. Listen to "Straight Shooter" album by bad company.