This is an interesting read on Ku vs Ka .
"All of the new Ka-band satellite systems entering the market have prompted fevered comparisons between the Ku-band platformsthere has been, and continues to be, much debate about which of the two technologies provide better service to customers."
HN7000s ProPlus on a 1.2m dish, 1watt tx, sig-93 acp-82
Starband Nova 1500 on E9, on a 1.8m dish 2watt tx EbNo-11.2
Spacenet on Amc 6 ul/dl package 1024x1024 on a 1.2 m dish 4 watt tx EbNo-9.