I've done both - Den Meeting at the church (the chartering organization) and Den Meeting in my home. Both settings have their advantages. When I'm meeting at the church, I have an incredible amount of space, unlimited seating, adequate classroom-style lighting, and contact with the other den leaders. When meeting at home, I have a comfortable setting, I'm always on time, and I have ALL OF MY STUFF!
I bounce between the two settings as needed by my program for the night. Making placemats for Blue-and-Gold? Church setting - they have lots of long tables that are built to handle glue