De la Hoya was better fighter but at 160 Canelo would walk him down and probably stop Oscar very late.
DLH out boxes him in the lower weight classes. Canelo at 160 maybe even at 154 looks way more powerful.
Khan would have done better and lasted longer v DLH at 154, Canelo would have destroyed Tito at 154 also, but DLH fought Tito at welter.
You know if DLH was a little less worn when he attempted 160 I think he might have been more dangerous, but considering current Canelo I suppose you'd have to give him the edge. I have a hard time seeing Canelo beat the guy that KO'd Fernando Vargas at 154, however. This is an interesting fantasy fight in any case.