3 blade or 4 blade prop??

I have been talking back and forth with prop manufacturers for a little bit now. They have reccomended 3 blade units for my application. I own a 95 Searay Skiray with a 250hp 5.7L Mercruiser Comp Ski. It has a 1:1 transmission.

Now after talking to a propeller dealer for the various props, they mentioned a 4 blade might be better for my application (Wakeboarding with weighted ballasts ~1500lbs).

Originally my boat comes with a 3 blade prop on it. So im wondering what you guys think I should do? This is my first time buying a prop and it seems like a really complicated decisison.