Samsung Captivate (AT&T)

Part of the Galaxy S family, the Samsung Captivate made a compelling alternative to the iPhone 4. It featured a gorgeous Super AMOLED screen, 16GB of memory, a 1GHz CPU, and Android 2.1.

CNET review bottom line: The Samsung Captivate was easily AT&T's best Android phone when it launched in 2010. It delivered great performance, tons of features, and an easy-to-use interface.