IMO...For a SUP school there is one clear winner out of these boards...even tho you're looking for a wave specific type board.
Out of the Laird Hamilton 11 and 11'6...South Point Bonga 10...and South Point kalama 11'6..The Kalama would be my choice.
I've not used one in the waves but I've heard they go well in the surf.
The others will be a bit too tippy and less stable unless they are for kids or fly weights or very experienced at SUP..both the Bonga and 11' Laird are pretty narrow. (27")
The 11'6" Laird should also be very good (they're a bit wider) but I've never seen or riden one.
Here's a pic of me giving a friends wife some help on her first go at SUP'ing...She's on the Kalama..It's a perfect board for learning on.
Also...I hope to have a go on a Bonga today so I will let you know what I think.
DJ
Also here's my 14 yr old daughter on the Kalama.