Spencer did average 20/10 in the NBA for six years. He did get once 29/13/3, i think...he was known for his physicality, aggressiveness on the boards, nice touch and that trademark turn around shot..Oh yeah, he did get 31/20 as a rookie in the ABA
Connie on the other hand, averaged 22/9 for three years. He did get 30/11 once in the ABA though. In his prime as a NBA player, he had 27/11/7 against LA..but he really never played from the start which hurts his chances in this argument...