Help me decide b/w: Lenovo W530 & Dell M4700

Thanks to all the comments and advice from the other thread, I’ve come down to these two machines with the following specs. Which would you choose? Lenovo costs $200 more. Thanks!

  1. Dell Precision M4700:
    COLOR: Black
  • 2.9 GHz Intel Core i7-3520M Dual Processor
    up to 3.6 GHz Max Turbo speed, 4MB Cache
  • 16GB DDR3 Memory
  • 1TB SATA Hard Drive
    LOTS of storage space!!
  • DVD Burner (DVDRW) - Burn DVD’s and CD’s
  • 15.6" HD (1366x768) Widescreen Display
  • 2GB nVIDIA Quadro K2000M
    and Intel HD Graphics 4000 Video
  • Integrated Dell Webcam
  • Intel Centrino Ultimate-N 6300 AGN Wireless
  • Internal Bluetooth Adapter Installed
  • AC Adapter (Power Cord) Included
  • 9-Cell Lithium Ion Battery
    Windows 8 Professional COA - Loaded and drivers installed by the manufacturer!
    Network connector (RJ-45)
    USB 3.0 (2)USB 2.0 (3) – 1 USB/eSATA combo
    Stereo headphone/Microphone combo jack
    10-in-1 card reader, 54 mm ExpressCard, 1394
    Docking Connector, VGA, DisplayPort, HDMI
    1 Full and 2 Half Mini Card Slots
    Windows 8 Professional 64-bit
    FIVE Year Dell Next Business Day Warranty and Complete Care though July 3, 2018!
    Genuine Windows 7 Professional 64-bit Edition with free upgrade to Windows 8 Pro included
    Intel Quad Core i7-3740QM @ 2.9ghz (3.7 Turbo) 1600mhz/6MB cache
    32GB PC3-12800 1600MHz DDR3 (4 x 8GB) 32GB Max
    Nvidia Quadro K1000M Graphics with 2GB DDR3 Memory
    15.6" FHD (1920 x 1080) LED Backlit Widescreen and WWAN antenna (95% color gamut, anti-glare)
    720p Integrated Camera
    Backlit Keyboard
    500GB 7200RPM SATA Hard Drive
    Intel Centrino Advanced-N WiFi 6205
    8x DVD/RW Dual Layer Burner
    UltraNav TrackPoint and Touchpad with Fingerprint Reader
    3G Mobile Broadband WWAN Upgradable (3G card avaliable for purchase eBay item 170666234290)
    4 in 1 Media Reader and Modem (SD, MMC, SDHC, SDXC)
    Bluetooth 4.0
    9 Cell Lithium Ion battery
    Genuine Lenovo Worldwide Warranty 3 Year Depot (International Warranty Support - Model Type 2438)

The Lenovo has much better specs, they 're not really comparable at all.

The Lenovo has a sweet feature – poor chassis grounding!

It does not happen too often but you can be working along and decide to change position or get a drink of water. You decide to move your laptop on to or off your lap and touch the VGA port on the left side of the machine. BAM. You get either A). A minor shock or B). The screen turns to fuzz and the system powers off instantly. With that said, it is a workhorse that is specified (with the w520) across huge segments of the market (so says our IT consultant).

Thanks for the inputs. Lenovo it is!