In psychology, researchers tend to
focus on dual processes, which refers to the use of our system 1 and system 2 ways of thinking. Type 1, which relies more on the subconscious and emotions (your intuition or gut-feeling), while type 2 tends to rely more heavily consciously working things out. People don't tend to routinely think rationally. Our thought processes are generally not rational due to much of it being unconscious, emotional, and automatic. We don't tend to primarily rely mainly on one or the other. We are constantly using a mixture of both thought processes throughout our daily life depending on our situation.
Even when looking strictly at the idea of being "logical", this motivation usually comes from a place of emotion. We aren't easily persuaded and critical of others when we hear people refer to them as irrational, but when we are called out for our inconsistencies or lack of logic we become motivated to rethink our position. Reason is something that is commonly enforced by our emotions.
People don't lean more on emotions or logic, rather we are constantly using a mixture of both to dictate our thought processes. Whether we prioritize logic or emotions is something that comes more down to the situation we are in and even then our emotions can act as motivation for the use of more logical reasoning. Our emotions are something that come about as a response to something and play a key role in our decsion-making process.
Our emotions play a huge role in our everyday thinking processes, whether we are aware of it or not.
The relationships between emotions and rationality is a complex one and the idea of there being a dichotomy between emotions and logic is one that, from my knowledge, is a flawed way of thinking. Along with that:
That is a flawed argument. I am me, not you or anyone else. Someone making what seems to be a logical decision doesn't mean that said decision was based fully in logic. I'm not them, so how am I supposed to know their thought process by just watching them? Also, my own biases would get in the way. What people consider to be rational or logical can sometimes be based in their own biases. If I'm religious then I may view believing in god as being rational as oppose to being an atheist. If I am a conservative then I may view anyone left of the political spectrum as being less rational than me and vice versa. Along with that, even ignoring the issues with using observation alone to prove your point, our emotional processes can be subtle and even unconscious so just pure anecdotal observations alone are useless.