I think when it gets right down to it like everyone always says it depends on support. We have one and owned both TM and Maxter. Who you buy from and parts are a big part. Can you get parts at a reasonable time and if you use a engine builder is he available when you need him.
Who ever has one or the other will say that one is the best.
Both were good motors with good and similar power. Pick one that you can get support for in your area and go have fun.