There have been questions about reliability of laptops from a particular company. Lots of people vouch for and against a particular brand based on their experiences. So here is one article on CNET I wanted to share which concludes that all brands are equally reliable.
Source: Who makes the most reliable laptops? | Crave : The gadget blog
Most people rely on anecdotal evidence to pick a laptop they think won't break down--relying on horror stories from friends or the Internet. Of course, every manufacturer has a mile-long list of angry customers who have not gotten satisfaction from indifferent tech support telephone drones, fine-print-filled warranties, or shady third-party repair services
No major laptop brand is really much more likely to break down than any other. Why? Because most laptops are essentially commodity products, made from the exact same components, and differentiated only by their outer shells and extra features. So, next time someone says not to buy a laptop from a certain vendor because they "break down all the time," you can assure them that there's about a 1-in-5 chance their laptop will develop a major problem, no matter where it came from.
Source: Who makes the most reliable laptops? | Crave : The gadget blog