Jackonicko
I don't see how you can say the Jag is more versatile than the Harrier. How is it more deployable too?
The advantage with the Jag that I can see is that we own the licence for it now and can develop all sorts of new toys such as Helmet Mounted Sight and fancy datalinks. If only we were allowed to fit such trickery into the Harrier or Tonka we could increase our capability even further.
The poor old Jag cannot operate in the conditions we find ourselves in today (hot and high) with anything resembling a warload. That is why the range/payload thing is so important.