Well, I love especially the aesthetic of an aircraft, so I love: MiG-21 (it's too beautiful, it's metal), MiG-23, FIAT G-56, Vought A-7 Corsair II, Eurofighter Typhoon, Macchi MC-202-205, MiG-15-17-19-23-31... so much and so beautiful.
PS: yes, I forgive the Flankers...