Hynix has no dout produced good mainstream chips, but would not consider them top-class, Chips are actually more important than manufacturers, but implementation cannot be ignored, Kingston used Infineon chips in their enthusiast Kingston HyperX KHX7200D2K2/1G, and did decently.
No doubt the Micron D fat body chips are the best and rocking material, but recently Elpida chips have shown great potential, and it's being used in a lot of high performing memory, OCZ platinum series, Kingston HyperX etc... and these chips rock too, and are cheaper. Promos it at the moment a sort of mainstream chip used by a lot of manufacturers, and many make their own chips. So u just cant look at a manufacturer and say what is better.
But for now, I know that at the moment transcend is not giving out any great product, for some reason, I have recently begun to dislike them. I'd much rather prefer corsair value products.
God I miss it that Geil/buffalo/G.skill don't sell here, If u will not believe, Geil has a product in market just few bucks higher than the transcend ram, that clock 1000Mhz at really good timings, Geil Ultra(not Micron D9, it's Elpida I guess, not sure).
In all, Corsair/Kingston is good, but Kingston is not so good on the Price front.