I was thinking about this lately, but I always loved the look of the PS2. I I think the black and blue color scheme works really well. And I like the two levels like the top and the bottom part of it.
Second to this, I think the Dreamcast looks really great. The angles on it make the console look so compact. The orange light on the console is placed really well too.
My fist general purpose console was the Sega Master System. It had a flowchart displayed on the top telling you how to use it.
It might not have been pretty in the traditional sense but I loved it.
Looking back on it the chart was somewhat misleading, the console had two built in games that were only accessible if you didn't insert a cartridge or card (Hang On, and Safari Hunt), and a third that also needed a controller connected and a few buttons held down when you turned the system on (snail maze).
The PC Engine is definitely a contender. Looks like something from the set of Star Trek TNG, takes unique little cards, and is extremely tiny* and compact. (particularly for a system that was ahead of its time) I think it's neat!
I still think the PS2 had the best looking and at the time most radical design. 1 was cool and iconic. 3 was just ugly. 4 ok, The current design looks cool but is extremely impractical.
Of Nintendo I liked the European SNES, Gameboy Color and DS Lite. N64 is dear to my heart but it was not good looking and the controller was horrendous.
Were blades the original UI for Xbox 360 or were they the update? I remember getting a beta invite to try the new UI, I can't remember whether it was going to or away from blades. But yeah, I liked that one too.
The GameCube in a cool color (like Spice Orange). Not just because I like orange. It has great contrast with the grey and black parts of the console. And the whole thing is wrapped up in a tidy, aptly-named package!
Not sure if it counts (given this community), but the original PS4 immediately became my favorite console design. I am generally a fan of simple, elegant, soulless aesthetics.
the 2600 and the coleco telstar are the first that come to mind. it's a shame wood grain fell out of fashion right as game consoles fell into fashion! i also love the the grey variant of the Saturn. Panasonic got two hits in a row with the 3DO and their GameCube-compatible DVD player thing.
honorable mention goes to the Daewoo CPG-120 which I only just learned about today. it's a consolized MSX2 that looks like a cross between the Enterprise and a Roomba. i can't decide if it looks magnificent or awful and it's arguably not a console to begin with but hey
edit: oh, and sharp's twin famicom! in general companies that made other kinds of electronic appliances had a way of bringing a certain class to console design without eliminating the fun
honorable mention goes to the Daewoo CPG-120 which I only just learned about today. it's a consolized MSX2 that looks like a cross between the Enterprise and a Roomba. i can't decide if it looks magnificent or awful and it's arguably not a console to begin with but hey
If we can pick home computers that lean into cartridges, the Atari 800XL is a real winner. Nice two-tone finish, classy silver buttons with a plexi trim oiece covering the power light.
Rented this a few times from Blockbuster and played it at the demo that was always set up at Costco, it was a really solid system with actual potential. Blockbuster had a program back in the day where for $40 or something like that you could rent a system with 2 controllers and 2 games for 7 days. Did the same with the Sega Saturn with similar feelings, eventually ended up owning a N64 and that was not a disappointment in the end.
The ballistic hard shell cases with foam inserts Blockbuster rented out consoles in were seriously cool I wonder if any exist still