suggestions on MM to MC upgrade

Current setting is Linn LP12 (pre-cirkus, valhalla) + Ittok LVII + Clearaudio Virtuoso Wood + Lehmann black cube, sounds wonderful - may be a bit on the rich side, but it sounds great to me, plus Virtuoso seems to track on anything. I am thinking to go to MC route and already obtained a Linto from the bay. However, I am bit concern how much should I spend on the MC cart so that it won't be just a lateral move. Here are the list of a few carts that I am looking at:

Audio Technica OC9
Audio Technica AT33PTG / EV
Ortofon Kontrapunkt
Ortofon Jubilee
Ortofon Cadenza
Clearaudio Concerto

The price range is pretty wide, and I don't know too much about other carts anyway - in fact, among the list the only one I listend to personally is ATOC9. Any suggestion is much appreciated.