Flacco is garbage, and absolutely a bus driver. Hence my consternation at calling Aikman a bus driver. Eli is a bus driver who got lucky with a Tyree catch from the Gods, but was propelled by an all-time Giants D. Flacco went off in the playoffs when he won, but outside of that, he's the epitome of a bus driver. Dalton, too.
Aikman was a great leader, but we're talking ability. Aikman was a phenomenal pocket passer. You can't hold it against him that he played in a time when QBs put up much less gaudier stats, as well as having an incredible, well-rounded team, that featured multi-facets on offense. He could sling the ball if he needed to. With deadly accuracy (at the time, per his contemporaries).
Aikman as bus driver is nothing new with certain contingencies of Cowboys fandom, Roy. And it is wrong, imo.