Welcome to New York vs.
Hello
Blank Space vs.
Send My Love (To Your New Lover) (This was hard

)
Style vs. I Miss You
Out of the Woods vs. When We Were Young
All You Had to Do Was Stay vs. Remedy
Shake It Off vs. Water Under the Bridge
I Wish You Would vs. River Lea
Bad Blood vs. Love in the Dark (

at both)
Wildest Dreams vs. Million Years Ago
How You Get the Girl vs. All I Ask (

)
This Love vs.
Sweetest Devotion
I Know Places vs. Can't Let Me Go
Clean vs. Lay Me Down
Wonderland vs. Why Do You Love Me (

)
1989 takes the cake for me.. 25 is rather bland right now, but that could change with more listens