This list is rather optimistic:
One Invincible class is always in reserve.
Also, ever since the retirement of the Sea Harrier, I suppose you cannot consider the Invincibles as effective as before.
They're not able to put up a credible air defense.
The single spanish and italian VTOL carriers have Radar equipped AMRAAM capable Harriers, but the british Harriers are limited to visual air to air.
The Type 42 destroyers have basically no AAW capacity left as the Sea Dart missile is on its way out, AFAIK the missiles have reached the end of their shelf lives.
Right now HMS Daring is the only AAW unit of the RN.
The 23s are great ships, though, as are the 22s.
Re the SSNs, HMS Sceptre is not operational and most likely will never be again.
The Trafalgars have had their problems recently, I wonder wether this is due to slackening of standards or simply because the USN keeps a tighter secrecy regarding such "minor" incidents.
All european navies have their problems, so I wouldn't be surprised if the french, italian and spanish navies will start decommissioning ships soon.
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