Like I said, I'm still going with lowly #4. Especially if there's some way I can get in with the YPM. If not...I guess I'd pretend nothing is happening as long as possible or try to help out in little ways. Looking back, yeah the Rachel thing is a tad unrealistic. I'm more of a Marco anyways. I don't come up with ideas, but I poke holes in them a whole lot. So if I were to resist I suppose I could somehow use that...
Something tells me that even if you agree to become a host they don't have some computer dating type system to match you up with your ideal Yeerk partner. And even if they did I doubt you could ask for one that is considered a traitor.
You're the one who likes poking holes in other people's plans. 
I don't think Terenia was proposing going to the Empire Yeerks and asking to be given a PM Yeerk. They don't know who the PM Yeerks are, for obvious reasons. I think she was saying, if there was a way she could contact the PM directly, she would become a voluntary controller to a PM Yeerk.
To answer the thread, I have no clue what I'd do. I've never been in a war, so I honestly can't say. I know that's a boring response, but it's the most truthful one.
We'd have no choice but to fight, since running isn't an option even if we wanted to. Besides, the Yeerks want at least some of us alive to take as hosts, so they couldn't just wipe us out from orbit, they'd have to send down soldiers to fight us on the ground. And that's where our numbers will work against them. Sure a Hork-Bajir (and maybe even a Taxxon) could beat us in hand to hand combat, but Earth has a hell of a lot of guns and others weapons, and as Visser 1 pointed out, one shot in head by a pistol will easily kill a Hork-Bajir (and Taxxons are dead as soon as they start to bleed!)
There's also the will to survive and our habit of never giving up to take into account. As stated in book 6, humans will often carry on fighting even if they think all is lost, but Yeerks won't. And that's why we'd win...
As v1 said, five billion humans all firing a single bullet would easily wipe out the Yeerk forces in an all-out war, even if they missed most of the time. But the point is, five billion wouldn't be firing that bullet. Looking at what the world is really like, I have a sneaking suspicion most of the 5 billion would be firing the bullets at each other over arguments about what to do about the Yeerk threat. Nice to think about us uniting against a common enemy, but unrealistic IMHO. We could be taken by all-out war, especially if the Yeerks already had enough infested to outnumber the rest.
As a joke I'd pour a large amount of salt in the yeerk pool. Seriously why didn't anyone think of that?
The idea of a guerrilla war is interesting though. I mean, it is impossible to win a guerrilla style war so the yeerks could not possible win. Furthermore, wouldn't defeating the yeerk in your head just be as simple as taking a large does of some drug. Not enough to kill the human, just to kill the slug. I really don't know what I'd do though. You can never really tell what someone will do if their life is on the line. I guess I would fight, but I don't think there would be any enlisting for me. Just not my style. Honestly I wouldn't sell people out, but I would prefer to take the yeerks out my own way. Like maybe with explosives or something like that. If the animorphs actually were real and fighting this war in real life, I would be amazed that they never really cracked.
Firstly, I don't think the Yeerk would let you do that
But anyway, it wouldn't affect the Yeerk at all, because you don't share any blood with your Yeerk, just neurone connections, and the drug couldn't be passed through those. (At least, the way it seems from the series you don't share blood with your Yeerk. But then how do they get oxygen when in the brain?... If you try to look too deeply into the physiology behind Animorphs, it falls apart
...) You'd just end up making yourself feel ill. Shame though, it's a good idea.
Dunno if the salt would affect the Yeerks. They may look like slugs, but I don't know if their physiology is the same. You'd have to ask Ax, and hope it wasn't one of the lectures where he wasn't really paying attention
