Study / Question about studing Polish history and culture [20]

Dear all,
I'm a Chinese student and I just graduate from my university. My major is International relations and I used to be an exchange student in Warsaw university for four months. After that I was deeply attractived by the history and culture of Poland. So I'm planning to study humanities in a Polish university. I know that Warsaw university is the best in Poland but I prefer Jagiellonian university. Because it is one of the earlist universities in Europe and I like krakow. But the problem is I don't know which one of them has a better reputation in humanities and if I need to take Polish language class first. So if there any one who can answer my question? Thanks a lot