Need experts on investing moats

I’m looking for financial advisors and investing experts to help explain the value of moats in choosing stocks, funds and other investments. First, what is your idea of what this concept means? Is it useful to individual investors, or just the pros? Where does the concept rank among various investing considerations? What other factors would be more important? What are the most valuable types of moats? Patents? A corner on a rare resource? And what would be examples of less dependable types of moats? Having key executives of employees who could leave? What would be examples of stocks that have wide moats today? Examples of moats that have served investors well, and ones that have failed spectacularly.Requirements: I prefer responses by email containing usable content and quotes, and because I get so many almost never respond to ones merely offering a source for interview. Please include the source’s contact info, full name, preferred title in its shortest form, firm and location (which is often hard to find on websites).