Most? Haha, try getting 2yrs standard warranty from Dell without paying for it.
keyword 'EITHER' and most Dell standard warranties are 1yr, anything more cost extra. Wait, that sounds like Apple Care. And yes they and Apple WILL fix a product but it will cost, same as Dell, it costs.
HP is also 1yr standard. So that's 2 big name companies down, We can pull others, so where's this "most" your talking about?
I can say with easy to find google proof that MOST computer companies offer 1yr standard with the option to buy more at a cost. Same with Apple.
The only big difference I see is that (like with Dell for example) you can opt for more years of warranty, but then again, Apple Care is 3yrs which is still the most time others offer as well.