Hi Dandaps, I feel somewhat clued up on this at the moment as I have been searching for a good replacement for our big truck for a while. I ran a 18 ton Scania which I have owned for the past 5 going on 6 years, during that time the most I ever put on it is a couple of rear air bags and tyres. Without a shadow of a doubt the daddy of all trucks, unfortunately she is starting to show her age and the time has come to replace it. After an extensive search I have decided to go for an ex gb 55 plate Daf with a good Palfinger remote crane on it. For a few thousand more we could have had a MAN with a massive Fassi crane but although the fitter tells me the MAN's are better trucks the crane was not remote and more set up for lifting containers than stillages of gear.
I think it depends on your set up and how hard you work them, let us know whatever you decide.