Ahh, a subject close to my heart.
My favourite has to be the Vai Jem BSB in blue. Saw a review in a magazine and fell in love with it. I had to settle for a bog standard Jem. When I win the lottery.
At one time I wanted this
And I always had a soft spot for this, just not with that awful headstock
Worst have to be those awful pointy BC Rich metal guitars like the guy from Slayer etc play. Or any Telecaster. Always hated that shape.