Speaking from personal experience, I would stay away from Springfield Armory. The one I had came from the factory with a bent plunger tube, broken plunger, and bad extractor. After 3 trips back it still wasn't working reliably, so I sold it.
Of the ones listed I'd be shy about the Ruger. Like Ichiban, I'm not crazy about the plunger tube (see above). I've heard lots of bad things about Kimber's customer service (not recently, though), so that would give me pause. I've not heard anything bad about the Para GI Expert or the Remington R1, and the price is good on them. If I was in the market for a 1911, I'd probably be looking at one of those.