I posted a precis of my comparison of medium format film and high end DSLRs on Petapixel.
Comparing the Image Quality of Film and Digital
But the full article including some interesting results from Henning Serger about film resolution is here..
Here's one of the key comparison images
I hope you don't mind me posting a link to it here - the reaction to the previous LF/MFDB comparison seemed to be generally well accepted. Let me know if I've transgressed though. (I know it's got DSLRs in but it's also medium format!)