personally I would say each has it's place. I would not use a bottle jack on uneven ground for anything. The exhaust jacks are nice if you have a suitable place to put them. In the end they are just a balloon. a high lift is versitile, but if you do not know how to use one correctly, or lack the right accessory for what and how you have to life they are dangerous. so in the end, it is really about what is right for you, your vehicle, and where you plan to go. I intend to see if my old bottlejack from my previous truck is able to fit my dad's new subaru, but then neither he nor I will ever take that thing on anything worse than a dirt road. I personally intend to get BOTH a highlift and a exhaust jack before I am through. but the highlift will definitely come first, and I will either buy or fabricate a tube adapter, and if possible when I replace my bumpers I will modify them with a hole for an ARB adapter, or I will buy or fabricate a highlift to shackle mount adapter. I will also be getting a wheel strap adapter and a pulling chain for my highlift. Like I said... They are versatile. Before I go anywhere that has serious sand though (east coast beach driving, getting into the desert or west coast) I will get an exhaust jack because they have a much largest ground patch so they will not be as bad about digging in, but it will always be my secondary jack. if the ground is smooth but very slick (mud or snow and ice) the exhause jack has advantages (if you have someplace under the vehicle that you can put it without risking puncture) they have a lot of advantages... but if you have sharp rocky ground, they run the risk of getting torn... also as one youtuber in austrailia found while testing them, a stray mounting bolt from the nerf bars can punch a hole in the jack, thus my distrust of them in jagged areas.