I'm amazed how this one escaped my attention last year when it came into play.
The poll shows clearly how much good taste some forum members have, although I'm not going to flame anyone for liking MTUs (I don't like to anyway, but I'm in a good mood at this time so definately not flaming!). They are keeping the legendary HST in service, without them we'd be a bit stuffed by now. Indeed, it is highly likely that by the time the HSTs are removed from service totally, we'll all be singing the praises of the MTU as HST2 comes into play and none of us can stand it.
However, I must discuss Dave's comment about how the MTU gives off a manly throb than a girly scream from a Valenta. It is wise to remember that the scream isn't from the engine itself totally, the kick-ass turbocharger does a lot of the screaming when it kicks in. Also worth remembering that the Valenta-fitted power cars have much larger, manly turbochargers than those baby things in an MTU-fitted power car...
Never got to sample the Mirlees ones but I am informed a pair of them went like s**t off a shovel. As for people preferring MTUs to VP185s, I cannot fathom that one. VP185s are great too, a lot of the MML (sorry, EMT) ones are quite enjoyable. The FGW ones I wasn't so keen on, but when you had the Valenta in 43192 (truely one of THE best ones in the final few months) and then went onto 43170, the difference was incredible.
All this talk about Valentas is opening the floodgates and a torrent of memories is coming back, so excuse me...