It's like a battle of the crappy keybeds ;-)
I own a Venom and have played around with the MicroKorg
numerous times. It really is somewhat unfair to give a complete review of a synth you don't own but I can't stand the MicroKorg
. It has a completely unplayable keybed to me. The Venom's is not good but you can definitely play it without cringing as badly.
As far as sound creation, the Venom is actually really good if you update the firmware and use the latest editor. Forget about editing from the front panel. You can't even get to half the parameters that way. Support is absolutely and completely non-existent for either the editor or the synth though now. The forums used to be pretty active. I was a beta tester of the firmware and the editor for the Venom. To me, the biggest gaping hole in the editor is that the arpeggiator editing never happened. The Venom has a lot of built in arp patterns but you need to open the control pattern and drop midi files in to create your own. That just sucks. They had promised a VST version of the editor which also never happened.
So...to summarize....get the Venom.