"I liked the Jackal from the moment I first put them on and have continued to love them through repeated use" says Rob Greenwood. Designed for ultra distances runners, this light-but-cushioned trail shoe would be a good choice for anyone looking for a comfy do-it-all shoe at any distance.
I haven't used the Akashas, but have used the Mutants, and if you like them then the Jackals - at least in my opinion - compliment them quite well.
I tend to use the Mutant for wetter/muddier conditions and rougher ground, then use the Jackals when it's drier, or when I'm running longer distances on firmer track/trail. Clearly this makes the Mutant more of a winter shoe and the Jackal more of a summer shoe, but that's potentially a bit of an over generalisation as each is a lot more versatile than that gives them credit for.