Generally speaking I prefer low gimmick trinkets that have a relatively straightforward effect. More times than not the trinkets that have a really weird on-use or passive effect are annoying to use and often not that good.
Passive… stat stick trinkets are always weak, and the on use ones in my experience have always been traps… they can give you super high burst potential when you line them up with everything, but the CDs on them ultimately make them inferior to the random procs from the passive ones. And some on use ones are just flat out useless anyways…
I’ve always preferred passive, but the macro is a good idea. Some visual effects on trinkets are really neat and others are awful, so I’d love some kind of a trinket effect transmog.
I prefer static or proc effects to on-use ones. Firstly, I don’t need another button in my class. Secondly, I just don’t like cooldowns in general. I’d prefer that my class be good all the time instead of only during the cooldown window.
The age old combo. One on-use, and one passive. Macro the on-use into burst rotation for more control, keep the passive for fluidity and frequent buffs.
I strongly prefer passive stat-stick trinkets. I already have enough things to keep track of without having to also keep track of a trinket proc, and I want to feel free to change trinkets whenever I want without the added baggage of having it change how I heal.
The only exception are mana trinkets, but it has to be one that returns enough mana to actually be worth using and it’s been a while since we had one of those.