What's Your Favorite US Dollar Bill That's In Currency?

I`m a foreigner but I love old US Currency, therfore I will write what I think.
Important for me is the $ 100 bill, because they shows the Father or better the first creator of US Currency.
Mr. Benjamin Franklin.
The security features he invented had existed all over the World until the 1990s.
I could write again about so many US bills but today I will designate just one bill.
The $20 bill Series of 1914.


From this issue I have all 12 Districts and 23 different variants.
The back speaks to me and let me dream.
Perhaps especially too:
On the back you can see a German ship and the front shows the only US president whose office hours did not follow
successively.
I like the portraits of Grant because he looks like a cool guy.
Benjamin Harrison looks wise and gracious.

I picked the two dollar bill.

Of course, I am of the opinion that the one dollar bill needs to go away. If it did then the two would see more use.

Welcome to CCF @orange26, I was confused a bit by the title.

"What's your favorite US dollar bill that's in currency?"

I thought you meant current circulating examples, and I voted for the $50 with Grant......it seems that members are voting for any US currency ever printed, both large and small. Every image posted has been large size examples.

1899 $5 Chief has always been my favorite.