Cartridges better than Colibri XGP?

This is an impossible question; any response is going to be purely subjective. And since you cannot get into someone else's head, I suggest that all you will get is a list of opinions from the probably very few of us who have ever heard a Colibri XGP variant. Furthermore, I don't think of the Colibri as a "high compliance" cartridge, but I could be wrong. It so happens that I do own a Colibri. I don't think it is an XGP type, however, but I could be wrong. So far it is the best sounding cartridge I have heard in my system. This includes a Koetsu Urushi and a top end Ortofon, among many others. On the other hand, it is rated for 1.0mV output, so it is hardly "low" in output. And it is mounted in a medium mass tonearm. There you have my opinion, for what it is worth.

IMO, there are so many structural variants of the "Colibri", as partially outlined by Mike Lavigne, that I don't know how any one person could say he knew the sound exactly. Not only do the materials vary but also the output voltage seems to vary from low, like Raul's, to high, like mine (1.0mV). Yet, there does seem to be remarkable agreement on the qualities, both good and evil. I am finding mine to be much more good than evil, in a Triplanar. Mike, maybe an "XGP" has gold windings, polycarbonate body.