"Best Looking" is subjective, I suppose, but here are my five:
(1) Spanish navaja de Albacete, by José Antonio Herreros Gomez:
Polished deer antler point, 440C steel. My prettiest knife, I think.
(2) Laguiole Honoré Durand:
Olive wood handle, 14C28 steel. 12cm closed. My favourite knife. Feels great in the hand, wonderful food/picnic knife.
(3) Le Thiers by Fontenille Pataud:
Boxwood handle, 14C28 steel. I just love the lines on this knife. The handle is not as comfortable as the Laguiole, though.
(4) Le Thiers by Chambriard:
Juniper handle, 13C26 steel. I was only going to put one Thiers knife in the "five best looking" category, but I had to include both. The knife pattern is fairly recent (1993, maybe?), but it really knocks me out.
(5) Schrade Scrimshaw stockman:
I believe the handle is Delrin, the blades are carbon (1095 maybe? Not sure of the steel). This is from 1982. I found it new in box at a gun show a couple of years ago. Paid $50; thought it was a fair price. I carry it occasionally, and have sharpened it lightly.
Group shot: