hi treynolds155,
I'm a big fan of Omegas. I've got some RS5's, and also the Alnico monitor and even have a set of Zu Omen DW's.
All are nice speakers and have strengths and weaknesses. The RS5 excels in having a speedy electrostatic like sound. While it does fairly well in the XRS cabinet, it does have bass limitations.
The Alnico excels in that it really conveys a lot more information around each note in the music. Hard to explain but there's a beautiful texture that it transmits really well.
Compared to the Omegas, the Zu's can play louder and fill up a large room better. Really, I could live with any of the three speakers and will interchange them in my main system as my mood dictates.