Thanks, Wayne! I agree with you that the 28 now looks rather unattractive. Regarding the 35 Vs 25, there have now been a number of enlightened members who stated their preference for the 35.
It is however clear to me that the 25 and 35 are stablemates, much closer to each other than they are to other Zeiss lenses. I haven't as yet tested the bokeh as such, which, I agree with you, is such a joy on the 35.