I love all of them! Each unique in their own way.
Doohan's NSR 500, probably the best 2T race bike ever.
Freddie's 500, first 500 Honda built in the general configuration that was to last the whole life of the NSR (v4 right way up!!).
Freddie's 250, because Honda built this as the next generation special for the 85 season, it moved the goal posts in the 250 class, and Freddie told me Honda used several technical breakthroughs off this 250 in the following year's 500.
_________________
Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30