For anyone who blocks Spybook, aka facebook as I do, the 4 are Katoa, Donoghue. Hammer and Herbie.
Not sure how Hammer made that list. He had a good year but I think very far from our best. Herbie was outstanding, period. Donoghue was a model of being consistently good. Katoa had a field day when our forwards got on the front foot in games but struggled otherwise. Hammer wasn't any of those. Not more than good usually but also struggled like Katoa when forwards were getting beaten.