Kingston is known for their compatibility and XMP profile testing in system RAM, beyond that I don't think they're really doing anything miraculous regarding SSDs. SandForce controllers may have gotten better since the high failure rate days, but they still don't seem to be as reliable as other controllers built specifically FOR reliability. SF is still used with the impress with the initial speed spec marketing angle, but even the new ones can and have failed within a year or less.
Aside from that, it's not just about controller durability but firmware and setup as well. I went with a Plextor because across the board they were getting raves from review sites and customers for consistency and reliability, which is largely due to their proprietary firmware. It's a great compliment to a solid controller.
As far as Seagate goes, they were good back in the day, but ever since the flood I don't think I'd even trust their HDDs, let alone their SSDs. Some may sit jaw agape at less than 30 sec boot times, but they can easily wind up with head in hands after one fails. It's like that classic line from Blade Runner, often times "the light that burns twice as bright, burns half as long". In this case maybe even less than half.
One of the primary problems with the so called "consistency" tests done on SSDs is it really only tests their consistency across various types of reads and writes. The most important factor regarding consistency in an SSD is how well they maintain speed across various drive conditions over time as far as how full they are and how cluttered they are. This is where Plextor's proprietary firmware comes into play. It makes the TRIM function more efficient and thus the drive overall more consistent regardless of data capacity or condition.
