Our baker is making us a 4-tier cake that will feed about 120 people (square tiers, 12"- 10" - 8" - 6"), but the size of slice that she bases this on is 1 1/4" thick, 2 1/4" wide, and 3 3/4" tall. That doesn't seem very large to me, and since we're having 4 flavors, and the plated slices will be self-serve, I'm worried that, since the slices are fairly small, people will take more than one before other people have a chance to get any at all. As you can probably tell, I really like my cake, and if I were a guest, I'd love to have the opportunity to try at least 2 flavors especially since they're on the small side. I'd just feel really, really bad if someone got left out because someone else had to be a pig and not wait until everyone had a chance first.
For those of you who have had your weddings already, how large did your slices end up being, and did you have enough, too much, or not enough?