My person Top 10 One Piece Tracks list.
If you were looking for Bink's Sake, it's not included because I only wanted to use music for this video. No lyrics, but if it was in the video, it'd probably be in Top 3.

Timestamps:

0:00 Number 10
1:00 Number 9
2:00 Number 8
3:00 Number 7
4:00 Number 6
5:00 Number 5
6:00 Number 4
7:00 Number 3
8:00 Number 2
9:00 Number 1

Cover/Remixes used:

Zoro:    • One Piece OST: ZORO'S THEME「The King ...  
We are:    • One Piece OST: We Are! | EPIC VERSION...  
Overtaken:    • One Piece OST: Overtaken | EPIC VERSI...  
Difficult:    • One Piece: DIFFICULT [Epic Orchestral...  

Despite using some covers which sound better, the songs were ranked based on their original version.