Understanding fertilizer differences

Does anyone have a handle on the differences between polymer coated urea, sulfer coated urea, and urease inhibitors?

I am familiar with fast release fertilizers. I am familiar with organic slow release fertilizers. However, I don't understand why I would want to pick PCU vs SCU vs a urease inhibitor.

Anyone have any input on this?

@thegrassfactor any chance this could become a white board video? I saw your video yesterday and asked about the application of brexil micros as a preventative or practice application. I am trying to get a handle on what goes into a fertilizer schedule/plan for a homeowner.