I will try to define by category:
WW1 - Bristol monoplane fighter ( can't recall designation right now ! )
Between wars - P-26 Peashooter
WW2 - XP-47J Thunderbolt
Korea - F-86F Sabre
50's/60's - F-104 Starfighter
Viet Nam - F4E Phantom
Present day - F-15 Eagle
Conmercial : tie between Constellation and Republic Rainbow
"private" aircraft : tie between Stolp Starduster and Pitts Special
I can think of many more that could be listed, but I have tried to keep this short !
Most of us are acquainted with at least one "know-it-all". He may be as close as the mirror. [}:)]