Personally, I only use ternary ops (which I do use frequently) if it is as basic as it gets:

return $x
    ? $y
    : $z;
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If there is more than one condition, it's if/elsif/else, and if it gets much beyond that, I use a hash/dispatch table or some form of hash mechanism to just "drop-in" the result of the condition to present the result I want.