I suggest use Both.
Why? Because both logical thinking and emotional decision-making have their pros and cons.
Logical thinking allows you to think through things with clarity. It allows you to take decisions in a clear, step-wise manner, understanding exactly what you’re going to do, based on the assumptions that you’ve made, and being clear about your probabilities for success. Basically when you’re thinking logically, instead of allowing just your animal brain(and it’s simple algorithms) to take the decision, you think about choices and their natural consequences based on facts and probabilities and logic.
This of course is a difficult and often tedious process because you need to keep track of a lot of things. It is also true that, as humans, we aren’t always good at thinking logically.
Emotions on the other hand, drive you to take decisions based on your experiences, and the values that you’ve developed based on those experiences, plus your natural instincts(that has been given to you by your genes).
It is not step-wise. But it’s a quick-fire way to take decisions because your brain effectively comes to conclusions based on simple decision-making algorithms. You do not have to physically take every factor into account, the brain does this for you, thing based on it’s experiences and usually in terms of survival value, instead of step-wise logic.
Both are collectively help you to get done thing.
That's a great question and I think the right answer very much depends on the individual. Personally, I think it's a mix between the two.
You could have something you love and are exceptionally passionate about, but logically it just doesn't make any sense to pursue as a career because maybe you don't have the skills needed or it wouldn't enable you to financially support yourself (e.g. Some people may want to be a famous singer but can't carry a tune at all!).
Alternatively, you could choose a career based on what's going to make you the most money and be miserable because you don't enjoy the work. That's no good! We spend so much of our lives working, so you want to feel good about your job and enjoy your work.
I believe that the best situation is one where you can follow your passions and do something you enjoy/love that you'll also have a realistic chance of being able to financially support yourself. Don't give up on your passions - even if its something that doesn't become a career, it can probably still be a hobby!
Best of luck!
It depends on what is most important to you and fulfills you. Is a high paying profession most important? Helping others? Working by yourself or with a team? Do you enjoy intelectual challenges more than physical work? I can say from my own experience only...if you do what you love with commitment and passion, striving to do your best, you will be happy and successful. When I attended a high school reunion, a classmate was envious of me because I was doing what I wanted, even though I wasn't making much $ at the time. He was making a lot of $ but was miserable in his work but was afraid to leave that profession and not have the same life style. So you have to ask yourself what is most important to you? That will help guide you to your answer.Good luck.