Move the SRM ammo from your CT to your head. Internals have 10 hp each, your head has 18 (Not including the 18 armor). I highly doubt you'll notice the difference when you get shot in the face by an AC20 K2 (which is an instant kill), PPC stalker (assuming 4+ PPCs, again, instant death), or shut down in front of the entire enemy team, enough people will be firing on you that even if they do headshot you and detonate the ammo, you would have been dead anyways.
Now do the twist. You're welcome.
As for the actual discussion: I prefer the C1 over the other two. 2 ER large lasers and a couple of launchers of your choice? Oh baby. As an added bonus you can get a third large laser in the CT, or swap it all out for large pulse lasers or something. It's probably more versatile than the A1 or C4 due to it's hardpoints, though it does quite literally have half (or a third) of the potential missile firepower of the other variants. It's also quite possible to give it 2 ER PPCs or something.
EDIT: That reminds me, I need to go buy a C1.
Edited by Kassatsu, 17 March 2013 - 10:12 PM.