Logic vs Emotions

Which one of the two is better? Don’t say both are good coz there are situations where often they  head-on and one has to choose one of these. For example in matters of love, friendship, religious faith, philanthropy, unethical and immoral but tempting opportunities etc.

In most of our entrance exams or interviews we test logical reasoning but rarely do we test emotional stability.

Which one do you apply or trust more? It’s a no brainer that there has to be a balance. But how? Should every decision of yours be a blend of logic and emotions? But who decides this balance? Is same balance right for everyone?

OR rather than a blend should it be case dependent? That is, let logic be applied in certain cases (e.g. survival, business) and emotions in some (e.g. relationships, religious matters)?

Though even easier  is to leave everything to the superior fool; the mind (or brain?) whatever it thinks is right, just do that!! This may not always produce best results but is surely the easiest way out.

Just a thought: Emotions can be influenced (high jacked), can logic be influenced (high jacked)? Even in vocabulary there exists emotional blackmailing but no logical blackmailing!