In it to win it with this one. Here are my real time experience on SATA 2:
Crucial 256 GB > Samsung 830 GB > Samsung 840 GB
Empirical rating based on...stars and unicorns? Glitter stickers?
I'm all about real-life reviews and impressions of products but you're not exactly giving folks a lot to go on. Perhaps a sentence or two regarding read/write speeds, TRIM or stability/reliability might be a wee bit more useful than "this drive is awesome let's rawk HOOAH!"