Recently, I use a Clavia Nord Stage EX for live performance. The 76 keys version is still quite portable to take on the road.
It has a great sound, nice piano's, a nice Hammond B3 sound with really good leslie simulation, and nice effects including distortion. A somewhat limited synth is also on board but still usefull. What I like most is that almost everything can be controlled with knobs and buttons as you play. I hardly use any programs, because I can quickly switch between Piano, Rhodes and Hammond sounds while playing. Also the effects can be tweaked with buttons so you can change them easily while you play.
I have always liked my Sequential Circuits Pro One synth, so when original Prophet 5 designer Dave Smith came out with the Prophet 08 I had to try one and eventually buy one. Great analog character with lots of knobs, I love it!