I would have to really think about it to pick an absolute #1 album of the decade. Without looking through lists (thus I'm sure that I'll forget some), here's a quick, off the top of my head list of some of my favorite albums from 2010-19
Rock / Metal:
Tom Keifer - Rise
Halestorm - Into the Wild Life
Halestorm - A Strange Case of ...
Halestorm - Vicious
Black Stone Cherry - Between the Devil and the Deep Blue Sea
Judas Priest - Firepower
Judas Priest - Redeemer of Souls
Avenged Sevenfold - Hail to the King
Avenged Sevenfold - Nightmare
Metallica - Hardwired ... to Self-Destruct
In This Moment - Ritual
In This Moment - Blood
In This Moment - Black Widow
Tool - Fear Inoculum
Godsmack - Legends Rise
Blues / Blues-Rock:
Kenny Wayne Shepherd - How I Go
Kenny Wayne Shepherd - Lay It On Down
Kenny Wayne Shepherd - The Traveler
Joe Bonamassa - Blues of Desperation
Joe Bonamassa - Redemption
Joe Bonamassa / Beth Hart - Don't Explain
Samantha Fish - Black Wind Howlin'
Samantha Fish - Chillls & Fever
Beth Hart - Fire on the Floor