These days I have a strong preference towards "hardware"* only music making -- I spend most of my waking life staring at a screen, so I find it satisfying to step away and be hands on when creating music. The brains of my studio is a Synthstrom Deluge, which is an amazingly intuitive little gizmo - it has a built in synth and drum machine, a looper, a sampler, and a MIDI sequencer allowing you to drive all other synths in the studio. I also have an Arturia Keystep, which has a great live MIDI sequencer. Another fun gadget is the Roland RC 505, which gives you 5 independent and dubbable loops - I drive one of the two fx sends from my mixer through it, letting me build loops live from any of the other synths. Aside from those I've collected a handful of synths, both FM and analog.
(* quotes because pretty much all available synths, analog included, run on software. Most come with USB ports allowing you to connect and change settings, update firmware, etc.)