Anways I'll get the ball rolling..
Mine are (in no particular order) are these.
Fxpansion Strobe - Whenever I need a quick VA sound I often reach for this simple synthesizer. If you dig a bit deeper you'll find that it can cover quite a range of sounds when you start using the transmod system. I often find that Strobe can hold its own in a busy mix which is always nice. Anyhow it's a great one and definitely a synthesizer I'll never be selling! I think the first thing i thought of when testing this was that the presets reminded me of sounds I heard out of classic 90's electronic dance records and that was a good thing! I usually don't use the Fusor instrument but when I do i sometimes like using 3 instances of Strobe to create some very big sounds..
Diva - I was a bit skeptical that U-he could pull this off, but they did and now I am pretty much a believer in their modelling abilities. Nothing sounds as lush as Diva when it comes to polyphonic synthesizer sounds, and the first preset you play called "deep space diva" is proof. The filters in this actually do scream and self resonate very nicely and there is no stepping in the filters at all. I'm not so sure i could make A/B comparisons on the individual components to see if they hold up to their real world counterparts, but i don't really use diva for recreating vintage classics. I really enjoy diva because i can make Frankenstein synthesizers of my own using their parts
! One thing i often test with VA synthesizers is how nice the free running oscillators sound on their own without any FX or filtering and Divas oscillators really sound "alive" much like a analog synthesizer. I have got the chance to play with a Moog Voyager and i did those same listening tests on that and I found that Diva can mimic the behavior of analog components very well. 
Saurus - I owned this at one point and sold it, regretted selling it and now I'll be buying it again next. I'm not a Tone2 fanboy by any means and quite often i think their marketing is a bit of a joke. However there is something pretty special about Saurus and I think it can hold its own quite well. I would not say it models any particular vintage synthesizer really well but like Strobe it seems to excel at capturing the "essence" of old synthesizers. It also seems to hold its own very well in the modern VA department as well and can create very good EDM style electro bass and lead sounds. Again I don't think it really mimics or emulates any one particular synthesizer well but for what it can do it does it very well. One of the nicest things about this is that it is very CPU friendly so you can easily use multiple instances of Saurus for backing tracks without having to freeze them and this is always welcome for me as I don't like freezing while I'm jamming.
Anyhow I'm interested to read what others have picked lately.
