An interesting discussion about the Gripen's capabilities vs F-16 can be found at www.f-16.net.
Radar/RCS performance in particular and Datalink related can be found in page 3 & 4 of the thread.
Page 3: http://www.f-16.net/f-16_forum_viewtopic-t-1029-postdays-0-postorder-asc-start-30.html
Page 4: http://www.f-16.net/f-16_forum_viewtopic-t-1029-postdays-0-postorder-asc-start-45.html