Aaron takes two Samsung high-end smartphones - brothers, if you will - and throws them into the ring for an epic dogfight!  On one hand, the unlocked and unbranded Samsung Galaxy S II is the phone to have, with a 1.2 GHz dual-core Exynos CPU, 4.3-inch Super AMOLED  Plus display, 8-megapixel rear shooter, 2-megapixel front-facing camera, and Android 2.3 with Samsung's new TouchWiz 4.0 UI.  The Samsung Infuse 4G is available from AT&T and offers a 1.2 GHz single-core Hummingbird CPU, giant 4.5-inch Super AMOLED Plus display, 8-megapixel camera, 1.3-megapixel front-facing camera, and Android 2.2 with TouchWiz 3.0.

The Galaxy S II is the more powerful device between the two, but it's a costly $750 since it's not available in the United States.  Is it worth plunking down the cash for, or should you stick with the carrier-branded Infuse 4G?  Part 1 of 2.