Intersting question.
Cookie can often see what is on my mind, and sometimes has given my thoughts as an actual prediction - although when she has done that, she corrected herself either later in the reading or the next reading, i.e. she commented that she was seeing what I wanted or was thinking. (I've read with Cookie a lot over the years.) All in all, she remains the most accurate for me, despite a few things not being 100%.
Mattie picked up a cultural thing about me, and pinned some accurate details off the bat that she simply could not have known and which were not common enough to be random guesses - so I know she is the real deal i that sense... However, she did not read my mind on the first reading, and I have never returned to her because I realised that Cookie was in fact more accurate and half the price! So..
I do this at times - try another reader who has great reviews here.. and then think, why did I do that? Cookie reads me as a person better than any of them..
The only other person who has been v accurate is Keisha (but only with written readings)..