Not sure if this is best in the lounge or general but I'll put it in general
What supercharger whine do you like best? I'm sure you've all at least heard the sound of a series II and a series I 3800 here and if you have not you'd best be off to the In-Motion section.
The high pitched squeal of the M62 or the more mature refined whine of the M90 on the newer cars?
Personally I am torn, but the sound of a M90 with a 3.2" pulley is dang good music to the ears.
M62 = "I think your car has a bad belt or something"...."Nice Turbo you got in there"
M90 = "your car sounds cool"...."why does your engine make that noise?"