true, i own both a sony R1 and canon 30D with L lens. The sony is indeed slightly more detailed due to its 10.2mp sensor which u can't deny. It does look a bit sharper (according to dpreview, slightly processed but does not have the per pixel sharpness of the canon). What this means is the canon is smoother, natural. Sony if u compare side by side looks ever so slightly enhanced sharper which many may prefer. Color for sony is also slightly enhanced if u use the standard setting, for a more natural comparison, shoot in adobe RGB.
In the long run, i still prefer the canon due to the ability to change lens and it is definitely faster in capturing fashion shoot. Sony is a bit no no for low lighting and fast moving object, there is definitely a lag in capturing fashion models.
But the sony Carl Zeiss lens is worth the whole camera alone, can use it as a spare or backup camera. It is comparable to Canon L lens. The L lens alone can buy the sony R1 with a few hundred to spare some more. My take is to own both, but since sony is coming out with alpha series, sell R1 now while u still can. Keep it and its also a good deal if u can find a used one.