I love HHC and I think that most of it sucks, haha. Seriously though. It's definitely not the most bad ass in my collection, and I wouldn't really ever show it to someone with the intention of turning them on to electronic music, but it has a very special place in my heart because of my past experiences. I hate most of the lyrics, but there are some gems that I really enjoy for exactly the reason you listed... the euphoric, uplifting sounds.
Seeing it live though, is my favorite. There's really nothing like rolling during a good HHC show. It's so much fun to dance to and everyone's just smiling, singing, and having the best time. I like a variety of electronic music, and have seen so many awesome shows, but the ones that stand out the most in my mind are the Candyballs, the Hullas, etc.