Engagement party


I need advice! So we’re having an engagement party and I’m not sure where to have it. We wanted to do it at a pavilion and we found one that has bathrooms, big grill all the main necessities we need, but my sister asked our aunt if we could do it at her house and my fiancé says he doesn’t care, but he told me he didn’t think his family would stay long which worries me that if it’s not out by us they won’t want to come. We’re having the wedding closer to his family and my family has to drive between 45 minutes to an hour to us. Should I just have it at my aunts since it’s free or just do the pavilion by us? I’m so confused😖