PopFly Goes to College

Bill Zack presents an Architect Point of View (arcPOV) presentation on selecting the right LINQ model for your application. Bill covers 3 different flavors of LINQ; LINQ to SQL, LINQ to Datasets, and LINQ to Entities. Bill discusses how these flavors of LINQ can be used to access data in relational databases. He then covers the differences and the trade-offs involved in choosing between them.
You go one thing wrong:
You said Linq to Dataset is the only one that supports change tracking.
Linq to SQL also does. Only reason to use LINQ to Dataset is if you have a bunch of datasets laying around from ADO.NET 2.0 work.