"The Game" between Baytown Sterling and Baytown Lee. May not be what it once was but I'd like to see how many other high school rivalries draw 13k. Also the loser of that game traditionally falls apart the rest of the season over the loss.
I also like the trio of BH/Crosby/Dayton.
Deer Park and La Porte is also awesome.
Side note. Talking to the kids, Baytown Sterling vs. Goose Creek Memorial is gaining traction quickly. GCM kids wanted to do workouts at 5 a.m. when they heard Sterling worked at 5:30. It will only get more intense now that both are 6A.