I am a landscaping contractor and I have to coordinate an installation with an irrigation installation. Of course I am not doing the irrigation installation because that is not in my realm of expertise, but I have 3 potential contractors that install 3 different systems. Toro, Rainbird & weathermatic. What is the best system because this is in a "high end" development (20,000 sq foot lawn). Any specifics I should ask for or require? (I am in Western New York) Thanks guys.