Other than camera (sensor) specific "infrared pollution" related considerations, BMD cameras are not different concerning filters.
EDIT: I use a 77mm Hoya IR/UV cut filter with my BMPC-4K.
My Hoya ProND filters are more nuetral (little or no color cast) than my Tiffen ND filters (which are slightly greenish), which why I prefer the ProNDs.
I also sometimes use 4x4 glass filters (Tiffen polarizer, graduated ND, white net, etc.) in my matte box.
I've heard very good things about the Genus Eclipse & (more expensive) Heliopan vari-NDs. I've had very poor results with the LCW vari-ND (do not buy), and will probably replace it with the Eclipse.
There are infinite discussions of filters online. For example, here are a few excellent posts by David Mullen, ASC:
http://www.reduser.net/forum/showthread ... post423873http://www.reduser.net/forum/showthread ... post423989http://www.reduser.net/forum/showthread ... post441890http://www.reduser.net/forum/showthread ... post307349