This is a pointless question that has no answer without more information.
Even then we're likely to tell you either that two stamina trinkets are never the answer (which is true) or that the answer will change depending on what you're doing (which is also true). Either way, the question as you have worded it is poor, and will not get any answer more helpful than mine without you telling us more......
Actually, we'll probably go tell you to ask it in the sticky anyway.
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Caelestrasz
Rinforza - 70 Holy Priest
Levie - 32 Ret Paladin
Morokute nigai kajitsu no you ni
Hito no kokoro wo miryou suru no