I think the DC3 looks right.
And I think the F106 is better looking than the mirage IV.
The 757 was quite good looking. So too the stretch DC8.
let's talk ugly planes!
That european A400 prop transport looks like crap.
So does the Shorts aircraft.
The Viscount always looked a little queer to me.
The BAC Lightning (while fast) was funny looking.
But the Lockheed P38 lightning was a thing of beauty.