One of the best thing about using strongly typed query builders is the type-checking that you get -- for free -- while using them. Type-checking not only prevents you, as a developer, from making a mistake -- it also prevents admins from updating the API name for a field or from being able to delete it while it's referenced within your Apex code. Even if there were no other use for the `Schema.SObjectField` class, those two reasons alone would make it worth our while when deciding when to use...
