Not neccessarily,
There are only two special cases when you'd get exactly the same lift.
1) If the rear-end of a dakota weighs the same as the rear-end of an XJ
2) If the spring rates for the stock dakota spring and the lift dakota spring are the same (just more arched).
both of these scenarios are kinda unlikely though. so here's the other possibilities. Assuming that all the springs are linear-rate and that the dakota lift springs are stiffer that than the dakota stock springs, then
1) if dakota rear is heavier than XJ rear, then XJ will get less lift than dakota
2) if dakota rear is lighter than XJ rear, then XJ will get more lift than dakota
the amount of difference will depend on difference in spring rate between the the stock and lift springs for the dakota AND the difference between the weights of the rear-end of the dakota and the cherokee. for a ball-park difference range though, it should about an inch or less. I had to use some kinduv unlikely scenarios to get it to an inch of difference. I can crunch the actual numbers for you if you want, but i'd need real data on the springs and some vehicle rear-end weights. i just used dummy numbers cause i really had no idea what spring rates and weights to use.
interesting, cause this is the exact opposite of what i had expected - really weird actually. anyone else wanna check this out to make sure i didn't screw-up my calcs?
as far as the f-150 coils go, the exact same concept would apply.
again, all this assumes linear springs, if the dakota or f-150 has progresives, then all bets are off.