My favorite synth I've ever had was a Moog Prodigy. It kept breaking though, and I sold it. Too much of a pain to maintain.
I have a Roland Juno-60 that I love love love.
I have a Moog Little Phatty (purchased as a replacement for my Prodigy) that sounds nice, but I've never really felt a strong connection with it. I might sell it and get a Korg MS-20 Mini when they come out, if the build/sound quality is good.
Super Jelly of Kitsch's soviet synth collection. Always wanted to get into those.