I like the Woods 10' cutter, although my neighbor likes his John Deere 10' cutter. I think that in addition to brand you need to look at how you will use the cutter, some brands offer a light, medium, and heavy duty 10' cutter, and they are available in pull type or 3 point hitch.
For my needs I am using a Woods medium duty 10 foot pull type and a Woods heavy duty 6 foot three point hitch cutter. The 10' cutter leaves a great cut and is a joy to use in open areas. The 6' cutter I can take anywhere and it can handle 3" material, it also makes a great counterweight.