Horry. There were so many heroes from those championship teams, but he was always my favorite. Outside of the championship teams, I've got to vote for Chuck Hayes.
No lie. Besides, Drexler, Murphy, Rudy T, and Yao retired as Rockets. When the last jersey a player wore was a Rockets one, they are not an ex-Rocket.
Drexler is my personal favorite basketball player of all time (points to UN), so I voted him. It goes without saying that I love all of these guys who played since I started watching at age 5 in '95, and respect all the ones I missed out on before then. Favorite not listed: Sura.