wvr, not sure if this is at all interesting anymore, besides, i cant make the comparison. The huge twr advantage of the EF might dominate the Jas wvr.
bwr, wouldnt the smaller rcs of the gripen be a rather big advantage here? Especially with stores? Or maybe all ac with stores have such a huge rcs that it wont make much of a difference. Detected at 1000km or 800km, big deal?
Radar, well, how often are fighters left to their own radar these days? awacs on attack, groundradar on defence.
Dont the missiles do all the work these days?
So, a small, cheapish fighter makes alot of sense imho. But the ef got huge advantages in speed, climb and stayingpower. But counting the potatoes before they are out of the ground would probably not be healthy for the flyers of the EF-af if they went up against a gripen af.