Sorry don't mean to knock on you as a person, but this is the most stupid graph I have ever seen, The high 3 are the most sold laptops any where, you can go into any store and you will find more HP/Compaq then anything, next to the you will see a ton of Acers now, then maybe the same amount of Gateway, Sony, and Toshiba.
Acer laptops are great, I have gotten one for my mom a few years back right when Vista came out, it works like a charm, never once had to crack it open to fix it, I did clean it and replace the thermal grease which as a tech you know is a must. I got my wife one its almost a year, put windows 7 on it and its a beast, that's actually my laptop of choice at the moment. And I got my grandpa one, as far as I know he loves it way better then the Mac he had.
Acer/Gateway/Packard Bell are all very good machines you treat them right they will treat you right, eMachines I have no words for beside I hate them.