Craig,
Thanks for the link. I have actually done all that research already though

We got that size for a reason. The boat came with a 21 pitch prop. It still worked great but it got destroyed in the St Croix. Before I bought a new prop I did a lot of reading up, and decided on the 19 pitch prop since we mainly use this boat for watersports, or just cruising around not at WOT. This boat spends most of it's life at less than 35mph.
So I now have 2 props. One is a 14.25 x 19p and the other is a 14.5 x 19p. They work perfect for what we use it for. They are both 3-blade aluminum props. We tend to venture to different lakes a lot, so we prefer having a regular aluminum prop as we often have no idea what the lake is like as far as depth and what not (and we haven't gotten a depth finder yet). So I'd much rather just tear up a weak cheap aluminum prop, rather than a nice SS one or the lower unit. I much prefer the cheap aluminum prop be the weak link that gets busted.