In the story of the Alamo, there are two distinct groups that both play significant roles in the battle of the Alamo. The anglo settlers were presented as heroic, in that every anglo mentioned in the Alamo was mentioned with favor. On the timeline display, it said that Stephen F. Austin was permitted to bring 300 families from the United States to Texas, although the decree of April 6, 1830 stated that U.S. citizens were not allowed to colonize. William B. Travis became commander after being arrested, and Stphen F. Austin had the privelege of commanding 300 volunteers self proclaimed as the "Army of the People" after being released from prison in November 7, 1835.
The Mexican government was also very influencial and favorable. They authorized a Texan Navy to patrol the waters on the gulf on November 25, 1835. Because of political conditions, problems arose between the Colonists and the Mexican officials. Also, Jose Antonio Navarro and Jose Francisco Ruiz were the only native-born texians to sign the Texas Declaration of Independence. When the Mexican Constitution was drafted by delegates from all parts of Mexico, San Antonio lost its status as the capital of Texas.
Overall, I believe that the groups presented in the Alamo do a pretty adequate job of presenting the complete story, though it could be rather difficult to summarize without a tour guide.