My road bikes are all Japanese. Other than my late '74-built Fuji that I bought new, I prefer the mid 80s, which I consider to be the height of craftsmanship, quality and value. Lugged steel is a must. Butted CrMo, double/triple and even quad butting.
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'75 Fuji S-10S bought new, 52k+ miles and still going!
'84 Univega Gran Tourismo
'84 Univega Viva Sport
'86 Miyata 710
'90 Schwinn Woodlands
Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time