I read Tony Adams' one years ago, that stood out amongst the general fluff pieces of the time as being frank and honest. Recently I've enjoyed Ibrahimovic, Maradona and Pirlo, all people you could easily think have disappeared up their own arse if they didn't justify the hype. I got the Bergkamp one for a quid too, haven't got started on that yet though. Meant to be more about football theory than juicy stories.
The Pele one is alright, but a bit too matter of fact. 'I did this, then this, then this happened, thanks for reading' Got to Tesco too late to get it signed too, load of arse.