Also honoured at the launch of the 2014 South African Cricket Annual were David Miller, Heino Kuhn and Quinton de Kock.
Ontong finished at the summit of the domestic batting average in the Sunfoil Series with 927 runs at an average of 71.30 in 2013/2014.
Van Zyl slammed 933 runs at an average of 58.30 in 2013/2014.
The left-handed Van Zyl also averaged 42.87 in the Momentum One Day Cup competition.
Recognized for his form, the national selectors picked him as the first reverse batsman for the test series against Sri Lanka and Zimbabwe.
Although he was not given a run, Adams said Van Zyl must make sure he kicks on and keep on knocking on the door of the selectors with some more first-class centuries.
The Cobras coach said Ontong is a leader who inspired a lot of other players as captain. He trusts his own instincts when making bowling changes, but he also brings tremendous energy to the field.
Furthermore, he is the type of captain who prides himself in finishing the job with the bat.
He led the Nashua Cape Cobras to the title in the Sunfoil Series and the share of the Momentum One Day Cup spoils in 2012/2013 as well as the 2013/2014-season.
Ontong was at the helm of the South African A-team that beat Australia in an unofficial test series in 2013.
The SA A-team repeated the heroics in 2014 as they trounced Australia A at Townsville, courtesy of a superb 231 by Rilee Rossouw and an excellent ton by Temba Bavuma.