I think that the Daf is a great little truck. The MK/MJ is a great truck too. As a collectors piece it is obviously more desireable than the Daf. However as a collectors item the RL has more appeal than both of them, in abundance...
The Daf is better as a daily driver though and the Cummins engine, 60mph top speed and PAS do it for me. The cross country performance of the Daf is blighted by the crap (off road anyway !) Goodyear G288 tyres. If they were both on all service bargrips there would not be much in it.