This year I´ve been using the following, some on many accounts(not listing all, just the ones popping in my head now...):
-Yamaha LS9 (both 16 and 32 channel versions). Quite OK, especially for the price. Some older models have dusty faders, so calibration can be off a bit. Not good for monitor mixing (cue options lack)
-Yamaha M7. Pretty good, intuitive on operation.
-Soundcraft K3 and MH3000. Both OK, but I´m not crazy about their EQ or pres... Of these, I prefer the MH.
-Soundcraft Series 5. Good, but the one i used was in a bad shape.
-Digico D1. Super sound, a bit hard to grasp in the few minutes I had for soundcheck...
-Crest X-VCA. A bigger one with 40+channels. Nice sound, but some broken features (crackly pots and buttons, broken links due to internal ribbon cable problems)
-Crest XRM´s X-20´s. Read above.
-Mackie TT24. Really hated the UI. Unlogical in places. Not to my liking.
-Older Mackie large format desk. 48ch, (I think) 10 or 12 aux. Kept well, fixed installation. Actually quite OK.
-Midas Venice. Nice pres, but the short faders and lack of auxes drive me crazy. Lots of problems with EQ´s (squealing when adjusting freq).
-Midas Heritage. My fave. Works like they all should. Sounds really good.
-Midas XL200. The old workhorse. Still one of my faves.
-Soundcraft GB4/GB8 and some G-series 16 channel (the model skips my head...). Quite OK, but problems with lack of aux sends and cold-sounding pre...
-Yamaha DM1000 and DM2000. Neither good for live work (really difficult setup for the inexperienced, lots of menu skipping), but good sound.
-Allen&Heath GL (nearly all models in the GL series). Weird cheap-ish sound, and even more weird EQ´s. Def not my fave.
-APB Dynasonics Spectra 32ch w/VCA. Quite good sound, weirdly behaving EQ´s (you really need to crank the pots)...
-TAC SR 6000, 48ch . Actually very nice, and decent EQ´s
-Older TAC Scorpion. Albeit being large (40 odd ch), lots of features missing (like HPF)... Average sound. Really heavy and robust.
I´m sure I left out lots, but here you go...