Which of these would be best?
HP Pavillion DV6920EA
Intel Core 2 Duo Processor T5750
(2 Ghz, 667 Mhz, 2 MB Cache)
Genuine Windows Vista (R) Home Premium
3 GB Memory
250 GB Hard disk drive
Blu-ray DVD combo drive
15.4" widescreen display
Ethernet & Wireless networking
Webcam with integrated microphone
nVidia GeForce 8400M GS graphics
Acer Aspire 5920G
Intel Core 2 Duo Processor T5750
(2 GHz, 667 MHz, 2 MB Cache)
Genuine Windows Vista (R) Home Premium
4 GB Memory
250 GB Hard Drive
BLU RAY DISC COMBO DRIVE
15.4" CrystalBrite widescreen Display
ATi Mobility Radeon HD3470 Graphics Card
dedicated 256 mb Graphics Memory
Wireless enabled
HP DV9823EA
AMD Turion 64X2 Processor TL-60
(2.0 GHz, 1600 MHz, 1 MB Cache)
Genuine Windows Vista (R) Home Premium
3 GB Memory
160 GB Hard Drive
Lightscribe Super Multi DVD Rewriter
17" BriteView Widescreen Display
NVIDIA GeForce 7150 Graphics Card
Integrated Webcam
Wireless Enabled