I really prefer the PC Engine (Turbo) Duo, and the Twin Famicom over the original models, but I consider them to be more of an upgrade to a previously existing console than a redesign.
Having said that, I think that, with the exception of the 2nd and 3rd Xbox 360 models, there is no console redesign that I prefer over the original model...
For me, the old PS2 is still one of the most beautiful (and maybe most dated haha) console designs ever!