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Intel's 520 and 335 series. Intel partnered with Micron on flash production, but they design some of their own controllers while using SandForce in these popular drives. The get good marks for reliability and tend to undercut Samsung on price. (updated to credit SandForce)
Crucial's M500 series. Fast, thrifty and reliable. Plus they have a 960GB version for a reasonable price.
Sandisk Extreme series. Some models sport 2 million hour MTBFs - double most of the competition.