When talking about keyboards you always have to think that prediction and personal adjustment take time. You have to use the same kb for at least a couple of days and then the prediction magic starts to happen, lol.
Visually and for the touch aspect I like the L. But I have been using stock keyboard as I think the prediction is the best. Not sure if it's HTC technology or are they leveraging third party for the predictive piece...?
I changed to swiftkey as the HTC keyboard annoyed me, I would always hit the send button on messages instead of the delete lol. I can't fault swiftkey, its smooth, lag free and the best imo
I have tried Swiftkey numerous times, seems to be a fan favorite, but I seem to keep going back to Kii keyboard. For me swiftkey doesn't seem to predic properly
I keep flipping between several as I do find the animations on most of the keyboards lag a little and it annoys me. Swiftkey is good but a bit slow and bloated feeling. I like fleksy but its correction doesn't quite natch the others and it doesn't show predictions. Google keyboard is nice but I always seem to miss the space bar and press b or v instead for some reason! I actually quite like the stock one but then its not quite good enough and does some strange auto corrects sometimes so I keep looking for alternatives