Speaking of compact disc players, I quite like the look of the Sega CDX. I remember its compact design seeming downright futuristic at the time. Dreamcast is also very sleek and modern looking.

Worst looking, I have to say the original SMS. I'm sure someone will disagree, but I think it's just too weird looking with the shape and the weird stuff printed on it. Also, Jaguar CD looks like a toilet.