Refurbished Dvd Hdd Recorders Which Refurbished Desktop Is Best Out Of These 3 And Why?

Which Refurbished Desktop Is Best Out Of These 3 And Why? - refurbished dvd hdd recorders

I need help quick, what is better and why?

A6857c Refurbished HP Pavilion Desktop PC - Intel Core 2 Quad Q8200 2.33GHz, 8GB DDR2, 640GB HDD, DVD ± RW, Vista Home Premium

or

Refurbished HP Pavilion a6720f Desktop PC - AMD Phenom X4 9550 2.2GHz, 6GB DDR2, 640GB HDD, DVD ± RW, Vista Home Premium 64-bit --

or

HP Pavilion a6433w Refurbished Intel Desktop PC - Intel Pentium Dual Core E2180 2 GHz, 3 GB DDR2, 500GB SATA 3G, DVDRW DL LightScribe, 15-in-1 Media Reader, Gigabit LAN, Windows Vista Home Premium