Immitating the synth sounds from Axel F has turned out to be quite a challenge, but I'm not giving up on it yet.
In the mean time, I have another software review for you.
Zebra - $200 (8.5/10)
Zebra (which is now on version 2.5) is a pretty solid choice for your all-purpose synthesizer. It has all the filters and effects that you would expect, as well as the ability to customize and morph your waveforms. You can work with up to 4 oscillators, each of which can be made to have more voices. It's different to work with compared to most VST's on the market (look at the picture for an idea of what I'm talking about), but it still has enough power to keep up with it's competitors. A good choice once you get used to working with it.
-Lots of options for filters and oscillators.
-Wide range in general
-Takes some getting used to.
-Just a bit hard on your CPU. Not too bad though.