Since I started this topic, Swype has really grown on me. I can see the draw now.
For those who can run Swype and prefer Flex T9, why? Amazon says Flex T9 hasn't been updated in over a year, but Google Play says it was updated in January. I own it via Amazon (FAD) so I guess I'm running an outdated version. Still, Swype wouldn't run well on my first Android phone, and Flex T9 was about the best thing for it (though the trace method ran up its RAM too fast). Now that I can run Swype, I'm not seeing the draw to Flex T9. Though I just reinstalled it again for nostalgia purposes, maybe it won't bug me as much as Swype. I've turned off the nags in Swype, though, but it still does a couple things wrong.
Seems like if Swype could learn/predict, it would be the best one. SwiftKey X just bugs me for some reason, but I own it (also via Amazon FAD) and SwiftKey 3 is going to be a free update, so I'm keeping an eye on it.
Samsung Galaxy S3 / US Cellular / stock 4.1.1