I went with Makita without a whole lot of research, but I like that have a wide line of tools. I recently bought their weed wacker, and I'm thinking I'll eventually replace my plug-in lawn mower with their battery powered one.
One word of caution with battery powered mowers is they tend to weigh about 2x as much as a gas powered or corded electric mower.
May be a non-issue for you, but bit me hard when I tried to go that route. My lawn has poor drainage and never completely dries, and the added weight of the battery-powered mower led to constant rutting and mower-wrangling.
