Google is your friend.
To make it a little simpler, here is a site the gives RCS comparisons, e.g., the marble vs the golf ball, metallic or not.
Radar Cross Section (RCS)
Amazingly, after all this time, the F-35 isn't better than a B-2 bomber or the F-22 in general terms of stealthiness. I suppose all of this is rather subjective matter dependent on various technical factors.
For those who may think the adversaries aren't working the stealth detection problem, they are. Here is a Chinese article where the authors were probably partly educated in the USA, one way or the other.
http://www.jatm.com.br/ojs/index.php...wnload/470/424
I wonder if a new rule of engagement for the F-35 can be arranged where adversarial detection is limited to head on detection only where it excels in stealthiness.
