I had to quote your post to retrieve the links to make them load, lol..
http://downloads.bfads.net/i/a/878/i_Best-Buy_2011_HP-Desktop-Bundle-w-5GB-DDR-3-_1321824338.jpg
http://downloads.bfads.net/i/a/904/i_hhgregg_2011_AMD-Desktop-and-Compaq-185-Wid_1321377509.jpg
http://downloads.bfads.net/i/a/866/i_Staples_2011_HP-Desktop-PC-with-Intel-Penti_1320853126.jpg
Anyway, if you want to be able to play games semi-decently "out of the box," then the first option is really your only option, as the others have crappy integrated graphics, from what I can tell. (The first one is also kinda crappy, but far less so.)
However, if you're talking about pure value and you are willing to upgrade the graphics card yourself, #2 and #3 are better deals. #3 is better but keep in mind that it does not include a monitor. If you have a decent monitor already, I'd go for #3.
Also.. it seems #2 only has PCIe x1 expansion slots on the motherboard...? That means you won't be able to install a graphics card there. So it's basically a no-go for gaming. I couldn't find exact specs for #3, but I found a
similar one and it appears to be upgradeable, should you choose to do so. Too lazy to check if #1 is upgradeable, someone else do it. 8D
Keep in mind that upgrading a graphics card will probably involve buying a new PSU, too.