I haven't really got to answer that, have I?
Of course the Viper.
Best Russian fighter and also second overall would be the Flanker.
About the rest, I can't decide, because there are to many which are about equal, in my opinion...
But it's over with good looking fighters after the F-22, it seems... I can't imagine anybody describing the JSF as beautiful or anything close to that. But again I think the AF
's goal is to build useful aircraft rather than beautiful ones.
L-188, do you think of the SAAB J32 Lansen?
I think SAAB also built a licensed version of the Hunter, called J34, but I'm not completely sure about that one...
(wow, haven't been here for a long time...)