crappy cheapo turned pin one
Interestingly most Turned pin sockets are much more expensive (2x the price)... (Just double checked on CPC to make sure I wasn't talking out of my ****, since they were last time i checked!!)
The reason why supposedly turned pin are better is that they are machined to have a better/tighter fit on the legs of a chip, meaning that they are less likely to creep due to repeated heating/cooling action, along with it providing a better contact with the chip itself.