Hi Anton,
For my personal opinion Ortofon Jubilee is from another league. Far superior to both Denon DL 103R and Denon 301MKII.
The FR 202 MC its superior to both Denon but not quite so excelent like the Ortofon.
I would say that FR MC202 is well balanced and sounds truly analogic. A lovely cartdrige...
I have change the FR MC 202 between the Ikeda and the FR 64 FX ( 10") and i notice the upgrade of the Ikeda 12". But it is not a big diference just enough to notice the superior harmony of the Ikeda 12".
With the Micro Seiki RX1500 you notice all the "bad" things of the cheaper Denons.
I have not tried yet the Ortofon Jubilee with the Ikeda because of the high compliance of the Jubilee.
I hope soon try a top end Koetsu cartdrige with the Ikeda and then compare with the SME IV and Jubilee.
Regards
Afonso