Mostly a hoarder - cumulatively, in all programs - in the few years that I've been doing this, I've gotten about ~800K airmiles (NW/UA/US/DL/BA/AA - the goal was 1 million cumulatively by 30, so I've got 4 years to get 200K - shouldn't be a problem at this rate!) & the airline equivalency of about 60K in hotel points - I've burned 170K on my mom & sister, 50K as a wedding gift to some friends, and 61K on myself (30K for an upgrade on US & 31K for an Y/F award ticket on NW).
I'd like to start using them more often, but the way I see it, I'll use the miles for upgrades on int'l flights & only on domestic flights I can't financially afford but need to take. Currently, my friends can mostly afford to come on the paid trips that we do - so I don't need to give them tickets & if I had a S.O., I'd probably do some pretty sweet Biz or F trips internationally, but I'm single, so I don't really have anyone to spend them on other than family. And they've got their own little collections of mileage too...