It sounds dumb but my pick would be the SNES. There’s just something about 16 bit games I love.
The SNES has so many good games, like sf2. The first party games and some good arcade ports.
It also has a lot of good RPGs, like chrono trigger
The controller is really cute
Tho, the PSP is a close second. Tekken dr running at 3x resolution looks beautiful
Yes I’m a sucker for dpad centric devices. Yes i love emulation.
16 bit stuff looks amazing
PS2 for sure. So many great games that made my childhood and its easy to mod and repair.
SNES is close second. Was lucky enough that I got one growing up (it was 10 year old console at that point) and the 16 bit graphics and the music always take me back.