Not sure about if I should go with the USB3 or the Thunderbolt - because the price will not be that much diffrent.
I get 500 gb on the usb3 for about the same price as the 256 gb Thunderbolt, not much saved in a 256gb usb 3 actually.
Nice info on the scandisk, thank you.
Although in practice the two should be perceivably the same, I usually lean towards Thunderbolt if it isn't a huge price difference. It's probably just a preference thing, but in my experience Thunderbolt devices have been more reliable. Plus the TRIM thing could be an issue if you plan to use the system for years to come.