Whaaaaaaaaat???

Unfortunately I got a refusal from my favourite university Erfurt... :(

buuuut i got two assents from the university in Kassel and Nürtingen.

Now I have no idea where i should go...?

Kassel has a huge university and nürtingen is a small town.
Kassel is in Hessen, in the middle of Germany, Nürtingen in the southwest.

I´m anxios, whether my decision is wong or not