Remember always. All laptops fail. You want one that can be fixed at a reasonable price, that has standard parts, and plastic that doesn't warp. You can get fancy or pretty, but it is the standard laptop with the capability for a long warranty that will make the difference. You pay extra for a long warranty, but you can get a one year warranty that also offers a four or five year warranty. That can make a difference.
Lenovo 's are terrific. Excellent web site. Excellent support. For most, but not all models
Most of the other laptops are built in a series of buildings that are close together in one province of China. One day they make one brand. The next day, another. We have visited their factories a number of times. Stupendous assembly and craftsmanship.
Some are built in Korea. HP laptops are built in 7 different countries.
More important than brand is warranty and support after the purchase. Next most important are cooling channels, cooling fans, cpu fans, ability to clean out dust, hair, and fiber. These most important things are difficult to see or find out about.
Memory capacity is important, quality hard drive is important, cooling channels are imporatant. Warranty is very important. Warranty is not important.
Because of the Toshiba support after the warranty expires, and the cost of parts, I would avoid them.
If the laptop is any good, it will have a long warranty. A low cost one will have a screen or inverter that goes after 18 months.
Hard drives will generally be the same in all of them, as will the memory. But some low cost ones will have hard drives such as Hitachi and TriGem that are subject to early failures. Very few companies will tell you the hard drive used or the memory. So getting a quality computer that uses quality components tied to a longer warranty will save you money in the long run... Fujitsu, Seagate, Western Digital hard drives. Memory with a lifetime warranty.
Many laptops do not even own their own parts supply houses, or repair centers. Lenovos are fixed and back at you within a week. Some laptops take three months.
Quality has a price... but if you use it for work or school that quality is worth it.
If you are a gamer, no good gaming machine is low priced... Figger out why the low cost laptop is low cost.
Talk to somebody who repairs a lot of laptops for their opinions. Somebody who has used only three or five may not have a good view of the equipment you need.