from http://www.buzzerbeater.com/community/forum/read.aspx?thread=144856&m=1
Base Offense: This is the standard offense that all other offenses are based off of. It uses a normal pace and the shot distribution between players is usually pretty balanced. It is also the standard offense that a bot team will use every game. The base offense is generally seen as very basic and isn’t used frequently by the majority of competitive teams.
Best against: Any defensive tactic that isn’t man-to-man although it’ll still work alright against it.
Worst Against: None (man-to-man)
Push the Ball: “PTB” can be considered the same as base offense with one key exception – push the ball has an increased pace. This offense is often used against weaker teams when you want to try and run up the score. The same goes for all increased pace offenses.
Best Against/Worst Against: See “Base Offense”
Use man.