(why do people answer 'neither'? Do you know how annoying that is!! If it is a -this- or -that- question, you can not answer -them-. That was not the question.)
25 Big Macs for sure. They are taller and would appear to the guests to be a better choice than a quarter pounder, which, while good, looks kindy greasy. Plus, I think the big mac tastes better.