Served on two CVN's, in S3 squadron.
Some notes on F18s: ( only C/Ds in my time )
Range is short, and i mean really short.
Any mission will more then likely be flown with DTs which negates couple of arming points.
In 94 we had F14s frequently fly bombing missions while 18s flew escort, because 18 couldn't carry a decent number of bombs and DTs at the same time, and air opposition wasn't really expected.
18E/F has more fuel capacity but also larger engines so the range isn't increased significantly. But it does have two extra pylons for payload, no doubt for expected DT usage.
18 is indeed a jack of all trades and master of none. Medicore at best.
I doubt if it will be able to replace EA6Bs capability in the future. Seeing as F14s are bombing it obviously didn't fill in A6Es shoes very well.
As for S3s, that's a whole different story. Different mission, different plane.