Eric,
I think if you read my post you will see that i did not say i preferred the Canon to the Phase for colour, only for detail rendering against a cropped P20, but for colour on long exposures which i consider the Phase to be at it's weakest. Regarding the Zeiss lenses i used to use on the Blad: 40CFEIF latest, 60CF, 100CFI, 120CFI, 180CFI, 250SA, which i consider to be their better (best) glass, but agree with you on Schneider glass as well, it's very good.
With my 1DS3 i use a very good copy of the 24f1.4L (not far behind the 21mm Contax i used previously for sharpness and fringing, and much better at straight lines) a Leica 35f2.8 Elmarit , 50f1.2L, 85f1.2L, Contax Zeiss 100f3.5, Leica 180f2.8 Elmarit(non APO). To be honest i am more than satisfied with sharpness and detail rendering from my 1DS3 with these lenses, however less happy with Canon's idea of colour, being way too sensitive to the red channel...... given the choice i would have an aptus 75 over anything else i've seen digitally for daylight, trouble is i do lots of dusk and night pic's and most of the backs (at least older generation) seem to suffer.
One last point, i have tried many times various versions of the Canon 16-35/24-70/28-70/24-105 and have always been dissapointed optically, and for me also i like how fixed lenses make me slow down in the way Bernardo mentioned.
Regards,
Gary.