I've only done Princess and Avengers weekends. I actually liked Avengers more. The hotels are right there, you can walk to the start pretty easily, The 10k out there has even more park time, and the half, while having less park time perhaps has a lot more on course entertainment. There are tons of high school bands, cheerleaders, cosplay groups, Avengers had a 40s style military group singing Bugle Boy (at least when I ran by), run through Angels Stadium, and people just lining the road in area supporting everyone. And at the finish, the people lining Downtown Disney as you rant though was very motivating. It was just awesome. There was only one sort of boring part, and it was brief.
I also look forward to trying the WDW full, hopefully in 2018, but so far my favorite course so far has been Avengers.