Which Of These Laptop Is Better (gaming, Videos, Editing,etc)?

I’ve been searching for a new laptop and found these and wanting to know which one of these will be worth purchasing
MSI GX600
Operation system support Window Vista Home Premium
Processor Intel Core 2 Duo T8300 2.4Ghz
Chipset Intel® PM965 + ICH-8M
Graphics & Video Module NVIDIA® 8600M-GT 512MB
Main Memory 4GB DDR2
Card Reader SD/MMC/MS/MS-Pro 3-in-1 Card Reader
Hard Disk Drive 320GB SATA HD
Optical Drive Built-in DVD Super-Multi Drive
LAN/Modem Built-in 10/100/1000 Gigabit Ethernet LAN and modem Module
Wireless LAN 802.11B/G
Bluetooth Yes Built-in CMOS Camera 1.3 Mega Pixels
Audio Azalia interface, ALC888
HP Pavilion DV7
Operating system:
Genuine Windows Vista Home Premium 64-bit with Service Pack 1
Processor:
AMD Turion X2 RM-72 Dual-Core Mobile Processor
Display:
17.0″ Diagonal WXGA+ High-Definition HP BrightView Widescreen Display (1440 x 900)
Memory:
4096MB DDR2 System Memory
Maximum memory expansion:
Max supported = 8192MB
Graphics card:
ATI Radeon HD 3200 Graphics RS780M with up to 1918MB total graphics memory
Networking:
Integrated 10/100BASE-T Ethernet LAN (RJ-45 connector)
Broadband wireless:
Wireless LAN 802.11a/b/g/n WLAN
Primary CD/DVD drive:
LightScribe SuperMulti 8X DVDR/RW with Double Layer Support
Hard drive:
320GB (5400RPM) Hard Drive (SATA) [gigabyte is defined as 1,000,000,000 bytes, accessible capacity may vary]
Primary battery:
8-Cell Lithium-Ion battery
Personalization:
HP Intersect Imprint finish & HP Webcam with integrated digital microphone
Front-side bus (processor dependent):
Up to 4000 MT/s system bus running at AC/DC mode 35 watt
PCI expansion:
1 ExpressCard/54 Slot (also supports ExpressCard/34)
Gateway P-6680FX
Enhanced Intel Centrino processor technology with Intel Core2 Duo processor T5550, Intel PM965 chipset, Intel Wireless Wi-Fi Link 4965 network connection (802.11a/b/g/n)
4GB PC2-5300 DDR2 memory for multitasking power 667MHz frontside bus, 2MB L2 cache and 1.83GHz processor speed
Multiformat DVDRW/CD-RW drive with double-layer support records up to 8.5GB of data or 4 hours of video using compatible DVD-R DL media
Supports DVD-RAM, also supports Labelflash direct-disc labels using compatible Labelflash media
17″ WXGA+ TFT-LCD widescreen display with Ultrabright technology and 1440 x 900 resolution
320GB Serial ATA hard drive (5400 rpm)
NVIDIA GeForce Go 8800M GTS graphics with up to 512MB discrete GDDR3 video memory
Built-in 1.3-megapixel Web cam makes it easy to chat with and send video mail to family and friends
5-in-1 digital media manager supports Secure Digital, MultiMediaCard, Memory Stick, Memory Stick PRO and xD-Picture Card
IEEE 1394 (FireWire) interface and 3 high-speed USB 2.0 ports for fast digital video, audio and data transfer, eSATA interface
Built-in Bluetooth 2.0 + EDR technology ,
10/100/1000 Mbps Gigabit Ethernet LAN with RJ-45 connector
V.92 high-speed modem
Dell XPS M1530
15.4″ Widescreen XGA LCD–resolution at 1280 x 800
NB8M-GS 128MB Graphics with HDMI output
Fingerprint reader for extra security
Integrated Webcam
Processor Type: Intel Core 2 Duo 1.8 GHz, Dual Core
Ram 4gb Hard Drive 100GB
Thanks For your time in advance