From the people I know who have Airlift, most have been pretty pleased with the handling. I know Airlift actually posted a video a year or so back showing how their Air struts (adjustable bag over strut, basically #2 on your list) handled compared to traditional coilovers and they seemed to do well. Marketing hype obviously, but they've come a long way from a decade ago.
For the price, full air struts/bags will "usually" be cheapest (depending on what setup/management you go for). For cups, you have the cost of the coilovers, then on top of that the cost of the cup kit. For handling, the coilover/cup kit will handle the best.
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