OpenText and biblicalhumanities.org would like to agree on one treebank model to be used in both projects, and need to examine the advantages and disadvantages of various treebank models and approaches to analysis. This presentation focuses on use cases that involve querying treebanks for language instruction or linguistic analysis in order to determine the advantages of a given treebank model and the quality of the analysis in a given treebank. There are a variety of Greek treebanks, based on different treebank models, including PROIEL, The Ancient Greek and Latin Dependency Treebank, the Global Bible Initiative New Testament Treebank, the Cascadia Syntax Trees, the OpenText Treebank, and the Lowfat New Testament Treebank. These treebanks have different models, displayed using different visual metaphors, and are sometimes designed for different kinds of analysis. These use cases are taken from the following three sources: - Queries on participles based on Rijksbaron's Syntax and Semantics of the Verb in Classical Greek - Queries on articular infinitives based on Denny Burk's Articular Infinitives in the Greek of the New Testament - Queries that explore the word order of clauses based on Dag Haug's Word Order Change and Stability in Ancient Greek For each use case, a set of queries will be written using two or more treebanks, determining whether the required result can be found by querying a given treebank, and comparing the difficulty of writing these queries for the treebanks that are queried.