The Patriot appears to be SLC, while Buffalo is MLC. I couldn't figure out what controller they are using though.
For reading, any SSD should be fine. For writing, you need an SSD with a good controller; there are only 4 controllers of which 2 are good:
- Intel controller (best)
- Indilinx controller
- Samsung controller
- JMicron controller (worst)
Note that Intel X25-M SSD is by far the best SSD right now; but if you don't have the budget for it and you do not write to the SSD after initial setup only reading, then an SSD with simple controller should suffice. I would pick the SLC based SSD.
But any SSD of this class will have a bad price-quality ratio.