I own both of those IC's. I'd say the main differences are the Hero is more neutral, the Hybrid has a warmer sound. The Hero is more dynamic, where the Hybrid has a mellower, sweeter sound. I prefer the Hybrid for my turn-table, where they are pretty even on CDs depending upon musical preferences. If you listen to more rock, or more bombastic sounding music I'd go with the Hero. If you listen to more classical, or jazz, something with a lot of piano in it I'd go with the Hybrid. They are both really good and I haven't heard anything better at their price points. There is a really good review at Avguide.com on those 2, and 11 other interconnects hi-lighting their differences.
Best wishes.