What is the difference between soft vintage leather and pressed nubuck (for shoes)?

I want a pair of Fryes, and on the website there's this style I like called the Jackie. I want a dark brown/chocolate, which they have, but they offer it in two textures: the leather and the nubuck. Could somebody clarify the difference and tell me which texture they... show more I want a pair of Fryes, and on the website there's this style I like called the Jackie. I want a dark brown/chocolate, which they have, but they offer it in two textures: the leather and the nubuck. Could somebody clarify the difference and tell me which texture they prefer?

http://www.thefryecompany.com/womens-boots/view-all/76576/jackie-button?color=CHO
http://www.thefryecompany.com/womens-boots/view-all/76575/jackie-button?color=DBN

Thanks in advance!