I mean the Harry Potter line moves very quickly so you don't have to "RUN" there. It's almost constantly moving and there's a lot of stuff to look at so waiting isn't that big of a deal (the first time). After that i'd jump into the Single Rider's line, for me, that was only 15min wait . Throughout the entire park, i'd say the Spiderman or the twin S&S tower line moves the slowest.