Based on my listening tests and my ownership of Odyssey monoblocks for over 10 years, I strongly recommend that you avoid Simaudio and buy as much Odyssey as you can afford. I think the real "sweet spot" in the Odyssey line is a Kismet amplifier, clothed in the less expensive Stratos chassis (or case or whatever you want to call it). The Stratos case looks fine and stays out of the way, while the Kismet amplifier is just... beautiful. However even if you get a Stratos Extreme amplifier, you will be extremely happy (that is what I listened to for the first 6 years of my ownership).
Good luck.
Good luck.