My predictions:
PSV: I write them off every year, so I'll do the same this year. They didn't really have any spectacular signings plus they lost Alex & Cocu. They will end 3rd this season.
AZ: Hard to predict. They have real quality players that became a year older. They didn't really has as much impressive transferes as last year, which could either be a good or bad thing. Still a title-contender, especially with Van Gaal in charge.
Ajax: Title-favourites numer 1. Too bad that we're losing Babel now it seems, but we have so much class with Huntelaar, Sneijder, Stam, Davids, Gabri, Heitinga, Perez (?), Leonardo, etc. Plus I'm sure we'll get some nice signings from that €20M we'll get for Babel.
Plus, what new Ajax-academy prospect will breakthrough this year? My guess: Mitchell Donald or Javier Martina.
Feyenoord: The combination of very impressive experienced signings (Makaay, Gio, Hofland) and talented youngsters (Drenthe, Sahin, Vlaar, Hofs, Slory and Bruins) Feyenoord simply have a very good squad. Usually it takes time to adapt and form a real team. But I think they'll be Ajax biggest rivals again. Just like old times
Twente: They lost some players but they bought a lot of players too: Denneboom, Hersi, Huysegems and Elia too name a few. And if they keep Engelaar and El Ahmadi they'll have a great season.
I predict that Denneboom will be the big man there.
Heerenveen: If they keep Alves a steady 6th place or something.
FC Groningen: Around 8th of 9th place.
Utrecht: Lack quality, 10th place
Vitesse: I can't help but like this club. 'FC Hollywood aan de Rijn', they have colourfol players (Dikke Theo, Sansoni, Van der Schaaf) and there's always stuff happening. They will do well I predict a 7th place for them.
NEC: Lots of prospects that will shine: Lens, Davids, Kivuvu, Snoyl, Otten, Vincken (?), etc. They'll play some great games but end around 12th or 13th place.
No more real surprises I guess, Excelsior to get relegated.