Miss Terri
macrumors 6502
Glossy > AG
But, if you want to get an AG screen for MBP 13" get a matte screen protector.
1) The superiority of either type of screen is personal preference. You apparently prefer Glossy, which is fine. Others prefer AG.
2) Unfortunately, the quality of a matte screen film is nowhere near that of an original AG screen. Would that it were.