Yes, I love those gingerbread and pumpkin lattes! This is pretty much the only time of year when I indulge in lattes, because I love those flavors. (Though I tried an eggnog latte once, and thought it was pretty bad.)
Here's a drink I invented myself, called the Candy Cane. It's not hot, but since we're discussing seasonal minty beverages: vodka and creme de menthe. If you wanted to be really festive, you could put a small candy cane in it as a garnish. (It was inspired by the stinger, which is brandy and creme de menthe, but I like the vodka version better, because it's more purely fresh and minty. You could practically use it as mouthwash!)
Re mulled wine: If you're having a holiday party, it is a really good thing to serve, because it's festive but inespensive, because you can use cheap wine. I made it once for a NY Eve party. I had some champagne, but I couldn't afford to serve champagne to all those people all night long, so I brewed up a big kettle of mulled wine.
(In summer, BTW, the same goes for sangria.)