Samsung, Crucial, Corsair, and Kingston are among the best SSD variants. They consistently receive excellent reviews. They're highly reliable and fast.
I wouldn't bother with the OCZ SSDs. They are generally unreliable and are far more prone to failing versus the other drives. The only OCZ drive I would even consider touching is the Vertex 4. They seem ok. But other than that, you'd be better off with one of those other brands you listed.
Plextor are very good as well. Take into consideration the m3, m3pro, m5pro which will soon be available. They all have toggle nand which is the best and the marvell controller which, as far as I know, is the most reliable, a must for SSDs. Usually, the 256gb ones have better read/writes than 64/128/512gb, but not by a significant margin or at least one you can see except for in benchmarks. Samsung, Marvell, Corsair performance pro are good as well.