For me the rb2 styling has been more influential over the design of roos that have followed, I love the colour scheme and I think it really is one of the truly classic LEs. I've never been attracted to the end of days as I am not keen on pvd finishes/black watches in general however if the finish had been in carbon and ceramic I think I would feel diffently about it.
However, the EOD was the first limited edition and does look quite nice too. However, choosing one, I'd keep the RB2. The 5070 is a super looking piece too. So another great choice too.