Korg Prologue 16. It was immediate thought after reading your question. It seems that Korg does something good with resonance, judging by the answers so far. ;]
Polivoks filter on the Erica Synths DB-01. I get so used to cranking it to maximum without fear that I sometimes forget and crank other filters in the same way.
Using softsynths I like Diva, ANA 2.0 (Moog/Obie ones if I recall correctly), Sylenth1, Tal U-no-LX, Phoscyon 2. I have to think for too long for others so these must be the most common faves here.
Odyssey is my favourite even that I'm more into "acid"
I agree. Even though I really love Roland filters in general as well as the Minimoog and Oberheim SEM filters thereβs something striking about the Odyssey MKI filter. Not even the modern Ody clones capture how insane it sounds with the resonance high up.
Iβve had a dozen or so synths but the filters in high resonance of the Moog Matriarch, Minitaur and the SE Boomstar 4075 are my fav. I like pumping up drive, res, and feedback on those synths so much itβs rare the resonance is set much lower than a notch or two below self resonance. Especially the Boomstar.