I can not compare the two either .
But I do own the Dialogue Premium Integrated and believe it to be a very good and reliable piece . I previously owned a Primaluna Prologue II integrated for ten years . It performed flawlessly the whole time . My new Dialogue Premium appears to be as reliable and sounds like the Prologue on steroids ! It just has more of everything , sound wise and feature wise as well .
One thing that I look at , brand wise , to help me make a decision is to take a look at how many of each brand are for sale .
Good luck .