O Come All Ye Faithful

 

and

 

O Come, O Come, Emmanuel

Once in royal Davids city

 

and

 

O Little Town of Bethlehem

O Come All Ye Faithful

 

and

 

O Little Town of Bethlehem

 

Being lazy again!  ;D

And the winner, by 3 votes to 1, is O Come All Ye Faithful, which triumphed over Once In a Royal David's City.

 

The 3rd/4th play-off was won by O Little Town of Bethlehem, which also won 3-1, defeating O Come, O Come Emmanuel.