lol! timmers, you took the words right out of my mouth.
FC: um, i don’t really care for those cylon cliques. they’re idiots. what plan? i see no plan. idiots.
though if we are to assume that the final cylon does know who he is, then wouldn’t baltar be completely out of the picture, given all his internal struggles we’ve seen in many episodes concerning his suspicion that he might be a cylon too. if he is the FC, wouldn’t it cheapen all those scenes?
I totally hear you. I feel a little bit of an Adama’s-favorite-novel complex coming on, like I don’t want to watch the final episode, ever, just so I can keep the mystery going.
Hiding in plain sight.
No, just kidding.
I don’t buy that the skin jobs don’t know who they are. I think they do. They’re just messing with everyone.
Gas?
Low self esteem?
Word Badword. Word.
OMG. that’s it. Tom Cruise is the final cylon. explodes
So far we’ve got fat, mooching, bloated, and low self esteem. Reminds me of my teens. I could definitely work that into a Final Cylon story. Now who to pick on…?
When he/she/it can put down the ham sandwich and get on a treadmil it will be revealed.
And galactic overlord Xenu is the 13th lord of Kobol
Why is he hiding? HE’S IN THE FRAKKING SHIP! He is hiding in plain sight! He’s right there…see him? Between the broken neon light and Hot Dog passed out? Wait for it…he’s going to move any second…why won’t he move? What is going on? Oh my Gods…
…I am the final Cylon. Or not. Maybe that fourth cup of coffee wasn’t a good idea.
Well, know we now the fifth is not in the fleet. Who does that leave?
Well, it could be a dead character like Billy, Kat, Cally, or even someone like Joseph Adama.
It would have to be someone 3 would know.
D’anna stated that there were 4 in the fleet. The basestar wasn’t in the fleet at the time she said that. She knows them by sight. So I’m thinking that she had seen one of the FF on the basestar so she was only concerned about the other 4 in the fleet at that time.
Who all was on the basestar when she said this? Adama, Roslin, Baltar, Helo and about half of the viper and raptor pilots. Plus some deck crew…the hostage that D’anna airlocked was in an orange deck crew coverall.
Just my thoughts after a second watch…your mileage may vary. 
Agreeing with Gryper, that it could be one of the folks who were captive on the basestar.
One more possibility (which may have been stated elsewhere): Tigh & Six’s child is the final cylon. Arguments can be made on both sides of whether the unborn child is in the fleet, but I’m not starting that one!
Broken record here… Ellen Tigh. My arguments:
http://forum.galacticwatercooler.com/showthread.php?t=2287&page=6 and
http://forum.galacticwatercooler.com/showthread.php?t=2074 and lots more.
I wonder if it’s known all along what is going on and is just waiting for the right moment to reveal itself. Maybe when it’s certain that the other four aren’t going to be airlocked.