I don't use either that much, but I'll choose Facebook since all my friends are already on there and added. Twitter looks way neater, but I don't think any of my friends use it. I also don't post statuses often.
I personally don't have a twitter and haven't yet seen a reason to get one, so Facebook it is. I don't really use Facebook a lot, but definitely more than twitter!
Killersup has a Facebook, and a Twitter. Twitter is confusing, and just overall hard to learn. Facebook was pretty easy to learn and one of the three pages always on when Killersup's uses his laptop. Youtube, Facebook, and Armor Games.
I'm here to vote for Facebook. I use both - and actually have them both connected - and, despite using Twitter more often in a day - specially because it's easier to access with my browser - than Facebook, the best format for me is Facebook's.
Comparing Facebook with Twitter is kinda hard. Both are social networks, but while Facebook is more personal - for family and friends - and privileges the posting of images, the creation of groups, polls and events, Twitter seems more like a way of spreading something short very fast. So, if you are looking for the virtual socialization, go for Facebook. If you are wanting some publicity for something you do - like a Youtube channel - or want to spread the word about interesting stuff and world news, go for Twitter.
+) FB has 10 votes till now: 70_70_70 (i m the 1st one voted for FB lol), blk2860, GhostOfHorror, tegan190, GhostOfMatrix, soccerdude2, MisterMano, landmaster2000, killersup10, Roger721
+) TW only has one from Mickeyryn (lol u r the 1st person voted for TW and seems u r LONELY now, poor u man :-P)
+) Blank vote of nicho: dunno which one should vote for (for him FB= TW lah :-P) ===> also a FA guy in this battle ==> maybe nicho and mickey ll bcome gud friend after this battle bcoz they r the FA guys in this battle lah :-P
P/S: no harding feeling here ok nicho and mickey? coz I was JK lah :-P