Vlad,
I'll just make you more torn. I listen primarily to-you guessed it-jazz with Omega Super 3S speakers. I hear powerful dynamics and enveloping you-are-there sound staging with big bands (Thad Jones/Mel Lewis, Count Basie). However, many jazz musicians/groups from the 40's-70's recorded with full orchestras (Antonio Jobim, Oscar Peterson), or played classical renditions or classically-inspired music (Modern Jazz Quartet, of which I have just about every album and CD!) Then there's the Duke Ellington Orchestra that has both big band and classical elements, depending on the album/CD! All is utterly beautiful with the 3S. I switched from a tube hybrid integrated amp to a seemingly non-audiophile Class D unit (Crown XLS-1500) and hear startling and effortless dynamics (that macro and micro thing!) and natural and realistic tone with just about any instrument from the string, brass, woodwind, or percussion groups. Best sound I've heard in my home. I've never heard the Alnico drivers, but if their strength is more of what the RS5 driver does it has to be a sonic killer! You cant go wrong with either selection!