Used to be addicted to only coffee but an Ireland trip introduced me to the idea of tea with milk.
Now it's coffee during working hours, Yorkshire tea with (vanilla soy) milk otherwise.

Why?
I am addicted to coffein and really like the taste of (milky) tea
I can also justify my addiction with the various health benefits from both coffee and tea (which even complement each other a bit).

I also have some green matcha tea occasionally, or a Matcha Latte, as I find the taste of matcha rather intriguing.