you really need to sit down and play with the EQ's and the parameters to get the nice sounds out of the instrument. the sound is very editable (not sure wat marlboronegro meant by not being able to edit CP's sounds..maybe the CP5 has less editing features, not sure).
anyway, where the CP's shine is the EP imho. the CF piano's are very nice too and i enjoy playing it but the keybed is too light to be a real piano.
as far as acoustic piano sounds, i think the RD700GX-F is superior...plus the keybed is so much more piano-like.

The SV1 is actually not bad either. to me it's just not a commited instrument and more like a jack of all trades. i like how easy it is to edit the sounds though and the tube preamp overdrive sounds very nice for their Rhodes sounds. :p
next step for me is to get the Mark7. i think im at the limit of virtual synthesis for now (modeling) for both piano and tines. (use my VPiano for piano playing, and CP1 for EP playing).