Which is the best?

Hi guys! I want to buy a new laptop for gaming and for begin with 3d graphics. Which one do you think is the best?

  1. Lenovo G505s 15.6-inch Laptop (Black) - (AMD A10-5750M 2.5 GHz, 8 GB RAM, 2 GB Dedicated Graphics AMD Radeon HD 8570 with 2GB DDR3, 1 TB HDD, DVDRW, HDMI, Camera, Bluetooth, Wi-Fi, Windows 8.1)

  2. HP 15.6-inch Pavilion Touchsmart Notebook PC (Midnight Black) - (8GB RAM, 1TB HDD, AMD Quad-Core A10-4655M APU with Radeon HD 7620G/8670M Dual GPU 2 GB DDR3 dedicated Graphics (2 GHz, 4 MB cache) Windows 8.1

  3. Toshiba Satellite C855D-16V 15.6-inch Notebook (Silver) - (AMD A8-4500M 1.9/2.8GHz quad core Processor, 6GB RAM, 750GB HDD, USB 3.0, Windows 8) AMD A8-4500M APU with AMD Radeon™ HD 7640G Graphic

What do you think?