I personally would prefer a Dell Laptop. One of the reasons why is because I have had Dell laptops for the past 7 years and they are durable, cost effective and also have a good processor. Since I have never had any problems with a Dell laptop, I plan on still buying and recommending them.
Mine is not even listed in your preferences. I would go for lenovo. I have been using mine since 2009. And, it's a netbook by the way. I use it for executive/administrative purposes.