Many times, there is a bigger difference in dealerships (customer support/ friendliness/...) than in product brand differences. Visit your local dealers and you can quickly see how you are treated, reward the good ones with your business. Ask your neighbors about their experiences at various local dealers.
Most brands offer light, medium, and heavy duty choices, you have to decide which best fits your intended usage and price point.
I went after a medium duty rotary cutter and really liked the looks of the heavy duty unit sitting next to it. The fact that it was right at the top of my tractor's lift capacity and the $ difference helped me stay on track and bring the medium duty home with me.