for now I think Sentinel and Kitsune are the only really useful EAS ships, but drones on a basic roam = bye bye drones, so maybe only Kitsune is useful?
Damn. Another WoT.
I fly the Kitsune, and have no experience with any of the other EASes, but my observation may still be valid.
With the EASes, everything but Caldari splits bonuses on the T2 ships between the racial primary and secondary EWAR.
For instance:
Sentinel doesn't improve tracking disruptor effectiveness over Crucifier, but adds a neut strength and range bonus.
Keres doesn't improve dampening effectiveness over the Maulus, but adds a point range and efficiency bonus.
Hyena marginally improves painting effectiveness over the Vigil, and adds a web range bonus.
I'm sure there are experienced people that can argue that these are good things (I'm sure there are people that love the Sentinel, Keres, or Hyena as much as I love my Kitsune), but I kind of see it as adding breadth rather than depth by going to an EAS from a T1 EWAR frigate.
The Kitsune is improved over the Griffin in both ECM strength and range. However, the targeting range must be overcome to make the EAS skill bonus really shine and make a difference (I think all EASes have crap for targeting range, but I'm not sure how it impacts anything but the Kitsune). I guess I'm weakly agreeing with your determination of the Kitsune being the only useful EAS. But again, I think it depends on if you think it's more valuable to have extra functionality like neuts, points, or webs.
As an aside, if we get enough EASes, all we need to implement standoff EWAR is a Remote Sensor Booster platform, like one for every four EAS
Though I don't know if we can convince anyone to fly support for the support...