Is Working For A Large Company Better Than Working For A Small Company?

I prefer to working for a small company rather than working (or you could say "I prefer to work for a small company rather than to work for a large company) for a large company. I used to think that it is (would be ) better to work at a large and well-known company, but I changed my mind after doing an internship at a bank.
When I was in the (you should say: <em>in university</em> or <em>at university</em>) university, I thought that one could learn more things by working for a large enterprise, but my experience in this internship turned out to completely opposite to my expectations. Usually, people who work at large companies have very limited responsibilities, which, in most cases, turn their work into a boring routine. I started to work for this bank as an intern with big expectations, but the type of tasks that I was assigned to do discouraged me due to their simplicity. In addition, my opinions were never taken into account, and these opinions were always discredited. This feeling of discouragement was present in almost every employee of that bank, so the work environment was not pleasant at all.
After doing this internship, I was hired by a small company. Even though, the salary was not as high as I expected to be, but it was a very good experience to boost my career. In this position, I had demanding responsibilities, and the tasks that I had to performed  taught me valuable lessons that helped me improve myself as an engineer. I was in charge of various projects, what that allowed me to broaden my knowledge and strengthen my professional skills.
To my way of thinking, working for a large company may weaken one’s work skills and may kill one’s creativity. Even though, some large companies offer better salaries than small companies, I prefer working for small companies, where I can improve my leadership skills and my performance will be more visible.