BMW Rider
Super User
Ridgid. Their battery warranty is excellent.
I did have a Ridgid drill a long time back when they first came out. I was lured in by the lifetime warranty. Eventually though, it became obsolete and they would not warranty it any longer as there were no parts available and the battery format had changed. I do think the Ridgid tools are quite good still, but like Ryobi, I don't like being restricted to a single retailer to purchase from. I have no issue with HD, I shop there lots as they are just a few minutes from home, but I like having options.
The biggest reason for me when I switched from Ryobi to Milwaukee was the Ryobi batteries. They just didn't last both in power delivery and lifespan. I have both Milwaukee M12 and M18 tools now and the batteries are much better. Aside from some of the higher demand tools, I can use one battery all day and still have power to spare. I've not yet had to replace any of them. Also, the variety of tools Milwaukee offers is incredible.