Better Keyboard is not like the suretype on the BB or Storm in one important way...its word prediction is really iffy...lots of very odd preferences in stock form (IRRC, type f-o-r and end up with two other much less used words offered as the first two choices.
Compared to BB suretype it's really weak, IMHO.
If you can find the HTC keyboard (look in the Samsung forum here) it's MUCH better.
And really, Swype is better than them all...never had and FC, once you learn the system you can type fast and with minimal concern for accuracy...I can't imagine going back to tap-typing at this point.