David Bruce Banner
Nude Cabdriver Ban
Bobby Orr was a dominant player in any quality of league.
Bobby Orr was special, no argument. Personally, I have him as the 3rd greatest player of all time... after Gretzky and Lemieux.
But, IMHO, OP's statement that Gretzky's legacy has been enhanced due to the style and quality of hockey being played in the 80's has to be balanced against the arguement that the NHL was at it's most diluted, talent-wise, during the 70's... and Bobby Orr benefited from that.
Lemieux probably faced the highest level of LQ during his peak... although Howe supporters might say differently.