I think pushback cars on aircraft carriers could be a great advantage for the look and as well for getting in those small parking positions.
In my opinion, you can not really get on the elevators well, without a tow. Even the AI uses an "invisible" pushback car...
And a few, moving vehicles on the carriers wouldn't hurt either!
They wouldn't be out of place on the airfields either, because they would give you the opportunity to get into the hangars.