I like the CDX because it was genius, it still looks cool today. It's so tiny it just fits in with anything, and you always get the "What the hell, that thing plays Sega games?" when people see it. It's a little marvel of engineering!
Personally I think the white Duo and the white Sega Saturns are the coolest looking systems ever, but it were talking American systems only I would say the Duo, CDX, and actually those little white Playstation systems are really cool looking too. I'm a big fan of white, haha.
I totally agree with you about the CDX and Sega Saturn. The CDX is especially awesome because it was a great *concept* that was executed beautifully to result in a sleek piece of plastic.
I think I should stress that I am much more impressed with items like the CDX (which was a "re-envisioning" of existing hardware) than the model 1 and model 2 Genesis / MegaDrive hardware. I owned a model 1 Genesis + Sega-CD and it always felt like a clunky amplifier + turntable (stacked components for a stereo) instead of a high-tech piece of electronics. I absolutely hated the genesis 1 aesthetics, including, but not limited to all the goofy text emblazoned on it. Only really cheap, low end consumer electronics (i.e. a Yorx branded stereo from Kmart) did that sort of thing. Sorry if I offend you, but the Genny *looked* like a goofy toy.
As a console, of course, the Genny ruled! I'm talking purely about aesthetics.
Let me go on the record that model 1 SMS = lovely! (see my initial post for the reasons) while the redesined model 2 SMS = absolutely bland garbage.
Unlike most of you folks here, I didn't hate the model 2 Genesis + CD combo, though it might have been lackluster (at worst), at least it didn't hurt the eyes and offend good taste like model 1 Genesis.
I feel that SuperGrafx is in league with Genesis / MegaDrive when it comes to goofy aesthetics. They both look like toys to me... sorry! At least SuperGrafx has an exceedingly "militaristic" feel, while the Genesis looks like a prop from the movie STARCRASH.