You don't even go to university yet, and none of your choices are as prestigious as Aberdeen, with the possibly exception of York.
I've met students in Aberdeen who've rejected unconditionals from Edinburgh and Glasgow to be here. You have to bare in mind that Aberdeen's entry requirements are low because their degrees are four years long as opposed to three, and its not as easy to attract students when even Edinburgh is two and a half hours away by train. If you wish to enter into the second year directly, you'll need A grades.
While I've also met some very high achievers here, I've also heard of a lot of people who've been 'kicked out' due to their failure to meet academic requirements. It's quite surprisingly common in fact. These are often people who've ended up at Aberdeen with their mediocre grades and have failed to deal with the academic rigour which all Scottish Ancients maintain.
Employers don't even consider newspaper league tables. They'll see that I've been taught by lecturers who are at the top of their field in pure mathematics, as the latest Research Assessment Exercise has shown, and if you really insist with league tables,
taken modules in the highest ranked history department in Scotland.
I also find your use of language hilarious.
You talk as if you're an informed person (i.e. someone who's been through the process of attaining a graduate job).
Aberdeen is in fact, a highly prestigious institution, particularly in the field of philosophy. Thomas Reid, the founder of the Scottish School of Sense (and was a contemprorary of David Hume) being the most notable. Let's not also forget that it's produced 5 Nobel Prize winners, and like you say is an incredibly old institution which has built a great reputation for itself.
I actually hate having to argue with people like you. People who've just started learning about the 'field' of universities, who, once they actually enter university, will soon be enlightened with the truth. Until then, it looks like I'll have to put up with you and your evanglistic ways in preaching the newspaper league tables.
I've also noticed that you're applying to study Sociology. So why are you arguing with me about prestige and prospects, when even a mathematics degree from Portsmouth will be more valuable than any degree you're set to attain.