I've also owned both-and the Purcell--I find the dCS sound rather processed and sort of 'homogenised'--- I'm rather an organic sort of bloke and prefer the 'organic'purer sound of the Audio Note/Hibari and Zanden DAC's.
If you can live with the dCS-- the Elgar has it over the Delius--but it's close.
If you can live with the dCS-- the Elgar has it over the Delius--but it's close.