Leather! It will wear better and is more classic IMO! They are both beautiful, though, so you can't go wrong!
Maybe check outlets/eBay. If you get a little lucky with outlet/sale prices, you may be able to get both. There were a lot at the outlets lately. I got 2 of my 3 there. They are wonderful!!!!
Leather has Tattersall lining!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!