I'm not really sure how to vote.
svc.com has a somewhat limited selection, but they really do ship same day. I live in northern Oregon and they are located in California. If I place my order on Monday and select the cheapest USPS option I will get my order on Wednesday. Their prices are often very competitive with other sites. I guess the biggest advantage is that if you live on the west coast shipping will be cheaper than if you order from the other sites. I've called and talked to them a couple times and they have been honest and up front with me. They even told me not to wait for them to get an item in stock and suggested competitor sites that I could get it from.
frozencpu: My only complaint about frozencpu is their shipping. It seems like they overcharge for shipping, at least in my opinion. There have been times when they have been the only one to carry an item that I need but they will charge outrageous shipping for it (for example, a couple fan clips for a thermalright heatsink, together weighed less than an ounce but they wanted twice the price of the clips for shipping). I've never had to contact them about anything.
performance-pcs: Great selection, competitive prices (especially with the coupons), fair shipping. I generally don't order from them unless I have to though because they are located about as far away as they could possibly be (Florida) from me (Oregon) which means higher shipping costs.
jab-tech: average selection. Prices vary. For some items they are really cheap, for others they are just average. It seems like their shipping prices have gone up recently but that could just be my imagination.
sidewindercomputers: Decent selection, good prices generally. They were slower in shipping my most recent order than I would have liked. For example, I ordered a gpu block from them on a Friday, USPS didn't actually get it until Monday, and it was delivered on the following Friday. Same day shipping would be nice. It also seems like they wait for USPS to pick up their packages whereas SVC drops them off the same day which can save a whole day.
So yeah, that's a quick summary of the sites that I have ordered from. I've never had a problem with an order with any of them. I prefer svc mainly because their shipping is so cheap because they are located about 12 hours from me, but because their selection is a lot more limited than other sites I frequently shop around.
Basically, they will all get your order too you. It's your job to shop around and find the lowest price and cheapest shipping. Sometimes its worth it to pay a higher price to get cheaper shipping.
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