Even if you could afford it (if you can't now.) We're talking high-end, luxury watch known for its iconic look. Whether it's the good or bad publicity is subjective, but what well-known watch would you never buy cause it's ugly or some other reason. Be it, this is very subjective. Let's keep it civil now! Me personally:
Audemars Piguet Millenary
Vacheron Constantin American 1921
Ulysse Nardin Perpetual Calendar
Blancpain L-Evolution (I love their other stuff, but this is just too...bleh.)
I'll probably never be able to afford these anyways... but beauty is in the eye of the beholder. Anything you just think is God-ugly or think isn't worth your cash despite its pedigree?