#1✎ 289Super_DefaultioVideo GamesI like to play video games!HobbiesDay PersonI like the warm sunshine and wake up early!Express YourselfZelda Is Awesome!I love The Legend Of Zelda!Express YourselfWhat was the best console or handheld to develop for (or what is the best console/handheld to develop for)?
Stuff like Game Boy, NES, PlayStation 2, Wii or even Xbox One is acceptable, but retro is considered before 2010 consoles/handhelds. 3ds obviously counts(because why not).
#2✎ 179112Me21Syntax HighlighterReceived for creating the code syntax highlighter on SBSNight PersonI like the quiet night and sleep late.Express Yourself>before 2010
How many consoles have been released since then? Maybe 4 or 5, I think.
Anyway 3DS+SB is the best, of course...
I wouldn't consider anything after N64 to be "retro", but whatever.
#3✎ 183niconiiVideo GamesI like to play video games!HobbiesExpert ProgrammerProgramming no longer gives me any trouble. Come to me for help, if you like!Programming StrengthDrawingI like to draw!HobbiesI don't even consider the PS2 retro, and that was in 2000...
Anyway, that's a pretty vague question. It depends on what you're looking for exactly.
The console that's easiest to program for? Then you want something with good compiler support. GBA is probably the easiest, with an ARM7 CPU and relatively straightforward hardware, with similar capabilities to the SNES but a much cleaner design.
Something that gets down into the nitty-gritty and makes you get creative with hardware limitations? I'd say the NES strikes the best balance there.