Cake + Desert bar (servings etc)

My fiancé is not a cake person... at all, but we know some sort of cake or so be expected, especially with the older crowd. I’m thinking a wedding cake, lemon bars, cookies... open to other suggestions. (Probably no donuts, cheesecake, or cake balls)

So my question is aimed towards those of you who have done a desert bar:
How many guests did you have?
how many did the cake you ordered serve?

List of attendees isn’t finalized, but it will be between 150-175. I don’t want cake for 150 + other deserts bc I think that’s overkill...


thanks in advance!