Online Photo Prints

Imagestation - Reliable quality but site is slow (uploading can be painfully slow if your photos are large in size)
Shutterfly - Decent quality but more expensive shipping. One shipment came really late.
Snapfish - People seem to like their quality and speed but I can't comment on either since I tried ordering from them twice (free prints) and never got them. The first time I ordered, it never came and I complained to customer service. They claimed they resent my order but that never came either. They tried to follow up with me months later, after they officially cancelled my order. No idea what goes on there.
dotphoto - They seem to think that they're doing you a service when they try to sharpen your photos. There is such a thing as oversharpening and it doesn't look good!
Winkflash - Hit or miss quality with more misses than hits. Can't complain though since they've been offering 50 free prints with new accounts.
Ritzpix - Also seems to be hit or miss but with more hits than misses. Fast since I can just pick it up at the store.
Photoworks - Horrible quality. If I had a photo printer at home and I printed it out myself, it would look the same.