I highly recommend the HTC One X+. Its a loving powerhouse of a phone. I absolutely love it. It ships with android jellybean 4.1 and will be getting the 4.2 update as well. ;)
http://www.htc.com/us/smartphones/htc-one-x-plus-att/Processor1.7 GHz quad-core NVIDIA Tegra 3 AP37 and MDM 9215m
Operating SystemAndroid™ 4.1 (Jelly Bean) + HTC Sense™ 4+
Memory 64 GB eMMC, 1 GB DDR2
Dimensions 134.8 x 69.9 x 8.99 mm
Weight 129 grams / 4.55 ounces
Display 4.7-inch HD 720p super LCD2 screen (1280 x 720); 312 PPI
Network LTE, HSPA+/HSPA/UMTS and GSM/GPRS/EDGE
Battery 2100 mAh lithium ion — embedded
Camera 8MP, f/2.0, 28mm wide angle lens, smart LED flash, BSI sensor, autofocus, HTC ImageChip, and 1080p HD video recorder; 1.6MP front-facing camera with BSI sensor and 720p video recorder
Connectivity Wi-Fi: 802.11 a/b/g/n
This phone can run any game i've played so far on the highest settings smoothly. Its a beast.
You will NOT be disappointed with this phone.