If I answer questions at all (which used to be rare but now seems to be something I'm doing more), I usually just go with whatever shows up when I click "Answers" (and I'd kind of like to be able to click the word, "Questions" instead - but that's a subject for another day).
Anyway, I go with whatever shows up when I click on, which, I guess, is generally "Latest". I guess my thinking is that if it isn't among the latest, there's a good chance I've always seen it and passed it by. I know there's also the chance I haven't already rejected it, but there's only so much looking for new questions I'm willing to get involved with. :)