Swiss F-5 tiger replacement

I don´t know whether this has been mentioned on this forum but Switzerland has officially announced a competition for a fighter to replace the F-5 Tiger. The contenders are..

Dassault Rafale
EADS Eurofighter 2000
McDonnel Douglas F-18E Super Hornet
SAAB JAS39 Gripen

http://www.nzz.ch/nachrichten/schweiz/neue_kampfflugzeuge_fuer_22_milliarden__1.653081.html

Any comments?