Well, I think the bokeh of the 85 f/1.2 Mark II is overrated. It throws things quite out of focus when shot at wide apertures, but there's also a pretty fair bit of greenish color fringing present in the out of focus areas, and even worse, there's a fairly high degree of double-lining, which is a bad bokeh characteristic. See this URL for a pretty good example of the type of double-lining Lloyd Chambers has found in two,different 85-L-Mark II samples.
diglloyd.com blog: July/August 2006
As little as I like pet names for lenses, the name Cream Machine is the name for Nikon's 85mm 1.4 AF-D,which has been on the market quite a while longer than the new Mark II Canon...until today I've never heard the name Cream Machine applied to a Canon lens,only the Nikkor 85mm 1.4 AFD. And I've only heard the name on the web, never in real life.
I've seen quite a few 85-Mark II images shot at wide apertures on another forum. One of the biggest knocks against the 85 is how glacially slow its autofocusing is,and the manual focusing is that weird, disconnected-felling focus by wire technology. I don't own the 85 1.2L Mark II, but I do own a 70-200 2.8 L-IS model,and it has pretty good bokeh, but it loses out to other truly aknowledged bokeh "kings", like the Nikkor 85mm 1.4 AF-D, and the Nikkor 105mm f/2 AF-D Defocus Control, the Nikkor 70-200 VR, and the undisputed bokeh king the 200mm f/2 VR Nikkor, which has almost perfect bokeh, both theoretically and in "the real world."
Bokeh is more than just "the degree of out of focus" a lens can make a backdrop appear; the way the lens "draws" is also a consideration. The problem I see on 85 Mark II images is the high degree of green chromatic aberration and the tendency to double-line, which makes images shot with the 85 seem very "jittery", with a tendency especially on foliage to make the backgrounds sort of "vibrate" or "shimmer". The 70-200 2.8L does not have that same tendency. And there's no real substitute for actual focal length in-camera, and no amount of cropping can compensate for different focal lengths. A zoom will allow one to properly frame portraits without needing to change one's shooting position, which leads to better,more-varied framing and better angular background control, in my experience.
I shoot both Nikon and Canon cameras and am pretty interested in good bokeh,and I think the 85 1.2L-Mark II has bokeh that is often overrated,compared with some lenses that have nearly perfect bokeh, like the 70-200 VR Nikkor or the 200mm f/2 VR Nikkor, which is a lens with the best bokeh,with no tendency toward double-lining,and virtually perfectly-illuminated circles of confusion on point light sources--coming as close to a "perfect" bokeh as is possible. The 200 VR is also about 7 pounds in weight.
Overall, for a working portrait lens, I would go with the faster-focusing 70-200 f/2.8 L IS lens over a heavy,slow-focusing 85 1.2 L, mainly because the zoom focuses faster, has less of that green chromatic aberration, and a smoother bokeh,without the double-line tendency the 85 has, and the zoom offers framing options that the prime lacks. Like I said, bokeh is not just "how significantly" out of focus the background is, there's more to it than just setting the lens to f/1.4 to f/2 and letting it rip. I actually think the 85 1.2L's bokeh is not nearly as good as several other lenses, and I think the 135 f/2 L actually has bokeh that's a bit better than the 85, but not quite as good as the 70-200 2.8 L-IS. My problem with the 85 1.2-Mark II's bokeh is that when there's a background with,say, backlighted trees or foliage, the background develops a "vibrating" look due to the double-lining present in the out of focus regions, so on close-range portraits with foliage backgrounds, the foliage is rendered out of focus, but with a high degree of distracting "nervousness". I see it also in floral closeups shot with the 85 Mark II, which is a subfield many people try and press the lens into use on, with results that show out of focus stems and stalks as if they were two stalks,like on the tulip closeups so many people shoot during tulip season; I was on another forum where there were many 85 Mark II floral closeups, and the double lining in the out of focus areas was noticeably inferior to that of say, the new 105mm VR Nikkor macro lens.
If you want really good bokeh, you can adapt the 85 1.4 AF-D and the 105 AF-D Defocus Control Nikkor lenses to Canon full-frame with a $17 adapter ring...I've shot those two lenses on the 5D,and they are spectacular bokeh lenses.