re: Crackpot ASOIAF Theories SPOILERS

After further thought, I'm betting that Varys does believe that Ashara's child is Aegon. Ashara had purple eyes, and if Aerys is the father, then he would have obvious Targ traits. Jon, on the other hand, seems to have inherited his mother's looks. Also possible that he knows the truth, but believed that Griff would make a better claim when he grew up because he looked the part. It may even be possible that Varys' involvement was limited to "Young Griff" and that he doesn't know that John Snow is Aegon.