The trinket spreadsheet found in Walkingthewind (Gear -> Gear/trinket Compendium -> Full trinket list) is pretty accurate and the best thing to refer when it comes to trinkets. You can easily even compare trinkets that are different ilvls so.. About the logs, there are tons of great trinkets out there and you can rank with any combination of them. When you see someone using X or Y trinket on warcraftlogs it's probably because that person got that trinket at highest itemlevel and not necessarily because he figured out some secret tactic with it.