I like the LF Custom boards. The Thruster is one of the best beginner boards we have had, but it's short so only good for people up to a certain weight limit, like 175- 185 ish? I personally like the Thruster and can tear it up pretty good on it. The 4' 10" is loose and fast and will carry more weight, so more people will be able to ride it. Haven't ridden the Koal.
There are a lot of other great boards that are more wakesurf specific. Faster, lighter, snappier, etc. But also, more money. Look at Walker Project, Shred Stixx, SMED, Phase 5, etc.