i got acer (which made me feel sick after 1 year). But Toshiba & Sony are the best lately, high priced but performance/cost are the best now.
After that if you don't use windows as main OS you could better go for Apple.
But it just what you prefer more, Acer do give error's within 2 years of usage. After 1/2 year my fan of my acer begins to fail. I needed to replace it.
Toshiba is better because they are stable and well made, price are higher because they are more used by business people.
Sony has the best price/performance, you can say that price's are to high but against what it can do it's normal.
If you don't have enough money to buy Toshiba or Sony, then better go for Asus then acer.