MeldaProduction has released a public beta version of MPowerSynth, a versatile new synthesizer that they modestly describe as featuring "the best sounding oscillators on the market, the most advanced distorting filters and a unique modular effects engine". It also features MeldaProduction's smart randomization system.
MPowerSynth is currently in beta, so you can check if it works for you and suggest improvements and features. You can also get it for free in exchange for your presets. Check this link for information about preset making action.
MPowerSynth beta is available for 32- and 64-bit Mac OS X and Windows in VST2, VST3 and AU plug-in formats. It has an introductory price of €99 (normal price will be €199).