I find my choice of coffee depends on my mood from one day to the next.
I believe Tim Hortons is the Coors Light of the coffee world, Starbucks would be a popular dark beer or stout.
Tim Hortons is without question the most reliable taste, very rare to have a bad Hortons. Starbucks is great when good but they definitely have reliability issues.
I have four Tims within four city blocks of my home so that is our usual go-to coffeee.