You'll get more pop off of the wake with a square tipped board due to the greater surface area. A pointed tip board will generally carve a little easier.
Bubba, the square tip helps the board ride better in both directions (bi-directional). The board pops better for wake tricks when you initiate the trick riding backwards. Tricks like a wake back to front, wake back to back 360, wake back to front 540 etc.
But,the pointed tips are better for your forward jumps.They give it a little less pop,but are good.I use a Hydroslide Cyclone,a plastic one,and it gives me plenty of air,just gotta land it^^}