Dogfight battle time between two T-Mobile devices (in theory): the HTC One S and the Samsung Galaxy Nexus.  The HTC One S is available now at T-Mobile retail stores for $149.99 and sports a 1.5 GHz dual-core Snapdragon S4 processor, 4.3-inch Super AMOLED display, 8-megapixel camera with 1080p HD video recording, a front-facing camera, 1,650 mAh non-removable battery, and Android 4.0 (Ice Cream Sandwich) with HTC Sense 4.  Though not available in retail stores, the Samsung Galaxy Nexus can be had through Google Play for $349.99 and offers a 1.2 GHz dual-core TI OMAP CPU, 4.65-inch Super AMOLED HD display, 5-megapixel shooter with 1080p HD video recording, 1,750 mAh battery, and a stock build of Android 4.1 (Jelly Bean).

What's more important, specifications and build quality or the most up to date software?  We'll figure it out.  Part 2 of 2.