No difference, really. The problem is not so much Hamilton or Vettel driving extremely well, because credit where it's due, you do not dominate in Formula One easily, it's that there's only one of them. Seeing someone just drive away from the pack and drive 90% for the rest of the race, no matter who it is, is just boring. And when it happens several races in the season, it makes the season boring.
So I'll object to any one driver having a Senna-esque performance, because to do that, you need a rival. You need to be forced to go 100% every race, all the time, because you have your Prost hunting you, or you are hunting him. So, I don't want Hamilton OR Vettel to dominate. Or anyone for that matter. I want Hamilton AND Vettel in two different, but competitive cars. Or someone else, but only if there's at least two.
So I'll object to any one driver having a Senna-esque performance, because to do that, you need a rival. You need to be forced to go 100% every race, all the time, because you have your Prost hunting you, or you are hunting him. So, I don't want Hamilton OR Vettel to dominate. Or anyone for that matter. I want Hamilton AND Vettel in two different, but competitive cars. Or someone else, but only if there's at least two.