Mine is the 1899 Black Eagle Silver Certificate.

Personally, I like the educational series. I was able to get these BEP prints from the 1971, 72, and 73 ANA shows for a lot cheaper than the real deal.

Mine has to be the CSA $20 bill with Alexander H. Stephens on it. :)

I'm not a huge currency collector, but the 1899 Black Eagle was the very first "horseblanket" I ever bought as a kid, so I've always liked them too. However as a teacher, I have to say I absolutely love the 1896 $1 silver certificates (History Instructing Youth.) Here at the Money Museum, I'm very happy that we have an example of the exceptionally rare $100  Legal Tender note from 1863, the first piece of US currency to have a pic of an American eagle! But my overall favorite piece of US paper money, I have to admit is the older style $5 FRN's that circulated when I was younger. It's just something about the entire design that I've always liked since I started collecting.

I like the Educational Series. My wife loves the Series of 1901 Bison Note. She loves anything with Black Diamond on it. These can be expensive items so we look and wish, for now!

1869 $5 Woodchopper!

My newest favorite is a CSA $500.

@Longstrider
I like the Educational Series. My wife loves the Series of 1901 Bison Note. She loves anything with Black Diamond on it. These can be expensive items so we look and wish, for now! Love the Educational series!

I like the $10 Bison note. For small currency, I like the 1928 Red Seal $1 FR1500 note.

My favorite is the 1901 $10 Bison Note...anything Buffalo is tops on my list!