Help me choose a city for my exchange program

Hi! I’ll be spending the whole month of August in the Czech Republic as part of a university exchange program, and I can choose between Olomouc, Hradec Králové, and Pilsen. Can you help me with which one of these would be the best option? I'm debating between Hradec Kralove and Pilsen because of their proximity to Prague.

Any insight is welcome, thank you for your help in advance!