We watch what we call 'christmas-not-christmas' movies daily throughout December each year. Below is a partial list of flicks we have catalogued that take place during xmas/new years, but are not xmas movies in the traditional sense. And yes, Die Hard and Gremlins are, and always have been, the ultimate picks for the holiday.
Hardware
Better Off Dead
The Box
Trancers
Lethal Weapon
Night of the Comet
Gremlins
Turbulence
Die Hard 1 & 2
I Come In Peace (aka Dark Angel)
Home Alone 1 & 2
First Blood
Edward Scissorhands
Black Christmas
Silent Night Deadly Night
Rocky IV
12 Monkeys
Dead End
Eyes Wide Shut
Ghostbusters II
Go
On Her Majesty's Secret Service
Wind Chill
Trading Places
End of Days
200 Cigarettes
New Years Evil
Reindeer Games