…doesn't really matter which one you get, so long as you can stand it in the shower or bath and hose it down when it gets unbelievably filthy. Because it will.
Oh, and try to make sure the tray has a lip on it round the edge. Seems terribly obvious to me but we were in a cafe today and the highchair tray was completely flat, so the baby just nonchalantly flicked everything onto the ground. It was an East Coast one, very stylish, like a tribute to (rip-off version of?) the Stokke Tripp-Trapp. We had considered buying it but am very, very glad that we went for el cheapo white plastic Ikea one now.
Please see Finger Food: Broccoli.