To save people repeating themselves can't you just trawl through
Here, the latter part of
here,
here, perhaps a bit from
here,
here, definately
here, and perhaps the odd line or two from
here because, let's be honest, it's going to be the same characters (with the same arguments and counter-arguments) that are going to reply. And despite all that has been written, all of the real compelling reasons will probably not be for open forum discussion! Could you not find a 'friend' at the Centre of Excellence near Swindon to do the research and work for you (it's about that time of the year isn't it?).
Or is this a challange to see if the whole of page 1 of the Mil Aircrew forum can be dedicated to Nimrod threads. Poor old WEBF's threads on the carrier keep getting knocked off the front page!