Went to a Hond@ owners meet in the Dolomites last year, the region round Foiana (Vollan), fabulous riding country! If you ever get the chance then do it.
The Stelvio is perhaps the daddy, but there are loads of stunning routes all round that region. Some of the more obscure passes are a lot more hairy, single track poor road surface with either no safety barrier or just a foot high wall between you and 500m drop! Not for the faint hearted. On the tricky routes we were sent through a minute apart so you didn't get bunching of bikes and mistakes.
Of course you could always take in the
Grossglockner , check the 360 panorama links on there.
(fit new brake pads before going!)