I would say the top three would be:
Baltimore News Ruth
T210 Joe Jackson
T206 Wagner
Less than ten years ago, a person could have gotten a T206 Wagner for 50k. I think the first one to crack 100k was only about seven years ago. Several have now sold in excess of 300k and the SGC 10 example in REA a few months back went for 400k.
I bet, in terms of percentage, the BN Ruth has probably done better - largely thanks to good promotion and auction catalog write-ups. Ooops... did I actually say that on Net 54?
JimB