I like the theming at PP slightly better (born and bred Brian Wilson/Beach Boys fan here), and PPH has one of my favorite on property restaurants: Yukabumi. If money is an option, this hotel is cheaper.
Otherwise though, DLH is great too. I like the Peter Pan-themed pool, and its right there for the monorail to get into DL... Also more convinient for visiting DTD. The rooms I felt were nicer at DLH as well.