For the US for sure, since it means more exports and I highly doubt we get EMALS only for a few E-2Ds in return. Anything below the 40 x fighters mentioned in the earlier RFI might be not enough for them and they know quiet well, the minute they approve catapults, we would go for E-2Ds anyway.
And there are certain advantages the F18SH offers as mentioned:
- twin seater available
- folding wings
- cheaper per unit and to operate
- a varient of the engine will be produced in India, which secures spares
- HALBIT could produce the thouchscreen of the upgrade roadmap
- it uses the Litening pod, that will be used by N-LCA and Mig 29K
- some of the weapons will be available in IN through P8Is too
If the USN will fund the CFTs as recent reports suggests, it will be an interesting addition too. Add the additional passive sensors, internal IRST and the Growler Lite options and you have a pretty good carrier fighter, with EPE engine and weapon pods possible uin future as well.
For INs timeline and moreover their requirements, the F18SH might be the better choice IF the US don't put too many restrictions on it.