Kinda the same recommendation. Don't really know the fishing situation for the other islands, but Kona is king for fishing in Hawaii. Highly recommend going out with the Topshape (finishing up an engine replacement this month).
My family has a 600+ blue that was weighed, and 2 800+lb estimated blues tagged and released. Plus a lot more released blues. My 1st trip to Kona, I had a Kona slam over 2-3 days. 800+ blue, a striped marlin, and spearfish. Last trip, we landed a triple header of blues, while trying to get a 4th blue to take another lure.
TAMUG'04 Marine Fisheries.