Tough call between Penny and Hudson.
I'd go with Penny, though I'd be tempted to go with Hudson since Penny had what was the best season of his career.
I'd also drop Cain, like you said Lincecum is a K machine, I would keep the guy with the better whip and ks generally.
Between Marmol and Bell, well neither are the closers just yet, I'd go with Marmol, I don't buy into Wood holding that closer job and Marmol should be next in line if he already isn't the closer.