there is no correct answer for this, although there are general ones. depending on what you need the computer for different brands stand out. for example apple computers are recommended if you are in an artistic business such as video editing but are poor for other more memory intensive tasks and far more expensive. alien ware is considered the best for gaming and hp or acer are good ones for all around usage.
I agree with the above, except alien ware computers are some of the best pre-built PC gaming machines you can find, but it is due to the hardware they install. While hp and acer install a more generic hardware brands to reduce cost, alien ware uses more big name brand hardware components and their computers are built for gaming, the price of alien ware computers also reflects this too. While hp and acer makes a great computer for someone's everyday use of Surfing the internet and/or watching videos, If you want a really good gaming system, then you can either build your own with good name brand hardware at the specifications you desire or spend the money to buy an alien ware computer that is already built for you.
Logitech is the best name for the mice computer devices.
Hp is the best developed computer brand. No doubt hp and its products is known for its brand and performance.
HP
logitech
Any Alienware brand computer.
mine
Corsair
HP, Toshiba and Dell are the brand name that offers the best computer cases.
TDK is by far the best brand of blank media that you can purchase.
When choosing a brand of computer that is best for a business one should pay close attention to the specs of a computer rather than the brand. However one may look at companies that offer repair services.
The brand of computer speakers you would buy for your small business would depend on what type of computer you are running and what you need your speakers to do. www.testfreaks.com/pc-speakers/ will give you a comparison to work from.
alienware> is not a computer itself and is a computer brand, the best computer for raw power is being used for commercial use but the best for gaming can be made yourself by using the highest end parts possible.