I won't make an official list until the year is over, but here is my unofficial list from last year:
(Basically this is just songs that I hear on the radio)
Best Songs:
10) Turn Down For What by DJ Snake and Lil Jon
9) Love Runs Out by One Republic
Blank Space by Taylor Swift
7) Latch by Disclosure ft. Sam Smith
6) Happy by Pharrell Williams
5) Ain't It Fun by Paramore
4) Don't by Ed Sheeran
3) Pompeii by Bastille
2) I by Kendrick Lamar
1) Uptown Funk by Mark Ronson ft. Bruno Mars
Worst Songs:
10) Bang Bang by Jessie J. ft. Nicki Minaj and Ariana Grande
9) Wiggle by Jason Derulo
Black Widow by Iggy Azealia ft. Rita Ora
7) All About That Base by Meghan Trainor
6) Burnin' It Down by Jason Aldean
5) No Type by Rae Sremmurd
4) Hello Kitty by Avril Lavigne
3) Hangover by Psy ft. Snoop Dogg
2) Anaconda by Nicki Minaj
1) Loyal by Chris Brown ft. Lil Wayne and Tyga