Cab would be fastest, easiest and less stressful. If not, they both may wind up being the same length of time depending on which bus comes in first. Either way, you wait for the bus to either HS or MK difference being you now have to walk over to the monorail (you would get off on the same floor as Kona) or take the launch over (nice ride but you stop of GF first) where the bus from HS would take you to Poly and then you walk upstairs to Kona. All in all, cab it!