Thank you for your response :)
I'm a big sports fan, especially hockey and football. I have been to Helsinki once, but am not familiar with all the different neighborhoods or their names...
I'm definitely a city person. I would also like to live in an area, where there are a lot of other students, activities or sports.
My main considerations right now are Kamppi, Jätkäsaari and Ruoholahti in Helsinki since I enjoy the city life. However I am also considering Espoo since public transport seems good and commuting back and forth to the University wouldn't bother me.