I daresay favorite and go-to are two different things.
Favorite is my 70-200mm L II IS USM f/2.8 but my go-to is my 24-70mm L II USM f/2.8
The 70-200 just feels better but the 24-70 has that more useable range when it comes to shooting most every-day activities.
Big shout out to the Sigma 14mm f/1.8 and the Canon 100-500mm L RF lenses. I've only rented both but both were a dream to work with, obviously much more limited in their scope than two lenses from the holy trinity.
It's really a toss-up between the 24-70mm and 70-200mm, but I think 24-70 because it's a bit more versatile, the 70-200 is too narrow for most things that you're close up for. 70mm will be good enough for most distance photography, however. Obviously not as good as real telephoto, but you CAN get info then, compare this:
You can't take a picture at a table of your food with your 70-200, you can with your 24-70. Or a picture of your date at dinner. The 24-70 is just more all-round.