I don't like how everyone gets their preference for a particular bus based on the powertrain that it's carrying. Sure it can be used as part of your reasoning, but I've heard some guys using powertrain solely as the excuse for not liking a bus. Me, I really don't care what shows up where and when. Sure I would want x and not y but it is what it is. I have people to do and things to see these days.
Engine...fan.. Get it?