Dell-7. This was my first laptop, decently built, but the battery was terrible. After 8 months my cpu fan went out. I put fans into it twice before getting rid of it on ebay.
Toshiba- 7.5 I havn't owned one of these, but know of friends with them. I have seen sound card problems and fan problems with these. The fan problem was mostly due to the poor build of the system. The case would keep rubbing against the fan. Fairly well priced, but as they say you get what you pay for.
Apple- 7.8 My roommate has owned 2 of these in the past year. He had problems with the usb port, and a continuing dying hard drive, replaced them a couple of times. His new one is allright, but occasionally has internet problems.
Gateway- 9.4 My school forced me to buy a laptop through them, which ment I had to buy a gateway. I was a little hesitant at first, but ended up buying a refurbished for only $700. No problems and I have had it for almost a year. Keyboards could be a little better designed, but really nothing worth complaining about. My roommate just bought one of these to potentially replace his apple. Also my brother has owned his gateway laptop for 4 years. He never had a problem.