My favourite would be the fat PS3. Shiny, large and overall just kind of badass. I also like the original Xbox 360 design, Genesis Model I, Nintendo 64 and PS2 Slim designs.

My favorite design is the neo geo aes
http://videogamecritic.com/images/systems/neogeo1.jpg

followed by PSone and probably gamecube

N64 for coolness & innovation.

PS4 for "Wow, how did they make it so small and sexy when the XB1 is so big?"

The PS2 slim and PS4.

the fat PS3 and the PS2 slim

I haven't seen one in the flesh, so I can't give it my vote, but the Panasonic Q is so damn shiny

I therefore must give it to the NES. Nothing gamewise is as satisfying as pushing a cartridge down to play.

error- double post

I know people dislike the N64's design, but I think it is one sexy beast!

N64, highly underrated

Xbox 360 Slim, PS3 slim (not the cheap looking model), PS Vita