I know this thread is a bit old, but...
would the APID be of any use when applying to UK universities? I'm about to be a senior, and I'll have most of the requirements for the APID filled. I'm missing one, however: it's the Global category: http://apcentral.collegeboard.com/ap...ves/38601.html
My school doesn't offer Comparative Government, Human Geography, or World History, so I'd have to self-study one of these three. Would it actually be worth it? MY UK list so far includes Oxford, St Andrews, LSE, Warwick, and KCL (though perhaps it'll be replaced by Aberystwyth).