I‘ve always considered these “best this-and-that of 2015” lists highly problematic because qualifying a device is much harder than quantifying it. For example: it’s quite easy to say which laptop was the best selling laptop of 2015, or which tablet was the best selling tablet of last month. However, qualifying a laptop and thereby claiming that product ABC is the best laptop available right now is nearly impossible: requirements differ so much between even only two users that it’s a moot point to begin with. Take a hardcore gamer and my mom – what do they have in common? Nothing whatsoever. Thus, whatever my mom would consider to be the best laptop for her might be worthless to the gamer, and whatever he or she would consider to be the best laptop for them might drive my mom nuts.
There are so many factors – screen size (yes, size matters!), noise, performance, operating system, storage space, graphics performance, versatility, etc. pp. Thus, there is no single “best” laptop 2015, there are only some that are better than others under certain circumstances and very specific conditions. Here’s a very specific example: the HP Spectre x360, which has been glorified as the single best laptop since the invention of computers, would be completely useless to me, personally. First of all I know for sure from experience that a 1,44kg tablet is about 1kg too heavy to be used accordingly. Thus, I’d probably be playing with the hinge for a while but after a month or two would never again use it in tablet mode. Second, I hate noise, especially the kind that fans make. For me, a laptop has to be completely noiseless. Thus, a laptop whose fans spin up occasionally wouldn’t even survive a single day on my desk – it’d be gone within mere hours.
Take these lists with a grain of salt – they’re good laptops but certainly not “the best” out there, because the one single best laptop for all use cases simply does not exist.