Subjective of course, and limited to what I own.
SOUND - Ambika
(I’m sorry this basically nails everything while still retaining its own character… the combination of waveforms/algorithms with the filter selections is to die for and has spoiled the shit out of me.)
FUNCTIONALITY - MS-20
(i use it for sound design, percussion, it’s my johnny on the spot-synth)
BASS - SE-02
(I prefer it to the Model D, /shrug)
MONO - HyperSynth Xenophone
(Holy shit, I can’t stop gushing about this synth. The TB303 is to Charmander what the Xenophone is to Charizard. This is probably my desert Island synth.)
DIGITAL - Ableton’s Operator?
I need more pure digital hardware synths in my life.