I agree that Jap bikes sound whiney - their aesthetic appeal is pretty low as well.
Not a fan of Harleys either.
As far as I'm concerned motorbikes have to be Italian.
I've had a number of Ducatis over the years, and currently have a 1098 - their V Twins sound better than anything the Japanese bikes can produce and they are just drop dead gorgeous looking.
Add Benellis, Bimotas, MVs, Guzzis, Aprillias - I mean really, come on, the Italians are by far the best.