Which gas trimmer brand do landscapers trust most?

Across high-trust r/lawncare and r/lawnmowers threads, ECHO is repeatedly called the 'gold standard for landscapers' for easy starting and abuse tolerance, with Stihl praised for cold starts and balance. Husqvarna draws more mixed sentiment: reliable for homeowner use but described by some specialist commenters as louder and less reliable than Stihl, and 'not top-tier' commercially.