I tend to do a mix of the 3 - I liked the fact that they've introduced EE - I usesd to do mainly green days in the past and got fed up - I don't like to eat a lot of meat although I do eat some so having E is great.
I think lots on here have lost on EE.
It's early days for me - just 3 weeks in but I'm finding it easier to stick to.
I like to mix it up so that on some days ie Red and Green I can have more HEXs
Hope that helps