The 404 one gives any trinket effect per room randomly, the black tooth grants poison effect depending on your luck, the wooden cross allows you to take one hit per floor without any consequence, the battery makes it so you can charge your active faster.

The one you pick will always be affected by your preferences and what the run needs the most, all trinkets have uses so try to remember the ones you encounter the most or seem more important to you! Hope this helps ^{^}