Several factors influence my choice, and it's a matter of opinion/experience.
1. Metal hinges develop slop much more rapidly.
2. Metal hinges with metal pins provide metal to metal vibration (e.g. electrical "noise")
3. Loose hinges that are too free CAN be prone to flutter.
4. Weight - all of the hinges in the box weighed just over 1.2 oz. Equiv. CA hinges, about 8 grams.
5. (and my MAIN reason) - ease of installation. Putzing around with epoxy, waiting to dry, holding things in place, lubricating the hinges...not me. EZ hinge - install in control surface side. Small drop of ca on one corner to hold in place. Insert into main flying surface. Drip CA on hinges from top. Wait 10 secs. Turn over, drip ca on other side. Wait 10 secs. DONE.

YMMV, and remember these are IMHO.