I would go with the Dual Shock 3. It's official. Those two look really uncomfortable, and the first one is *shudder* wired...

both of them look pretty cheap and would break quickly. I've bought 3rd party controllers before, and they typically don't last unless you buy really good stuff.

Logitech makes some good equipment, and my in-laws have this controller and so far I like it.

http://www.amazon.com/PlayStation-3-Logitech-Cordless-Precision-Controller/dp/B000O3E05Y/ref=pd_bbs_sr_2?ie=UTF8&s=videogames&qid=1232122168&sr=8-2

Doesn't that Logitech one not have sixaxis support though?

The OP doesn't sound like he cares that much about the motion controls, but he specifically mentions Killzone 2 and that's going to require it.

I don't know. I have only used it for Super Street Fighter II and Warhawk, but I didn't try enabling any motion controls. Like I said it isn't mine, but it seems rather high quality.