Probably not my first watched anime, but I do love mobile suit Gundam (the OG one : amuro and char) with Chinese voice over

As I grow older I actually watch fewer anime

Now with 3 kids I somehow get back to it

Macross

Neon genesis evangelion

Naruto

Bleach

Monster

Full metal alchemist

Tokyo ghoul

Gurren lagann

Sword art online

Stein gate

Kill la kill

Gundam seed

Witches of mercury

Demon slayer

Etc...

And then there's the movies

Most of the studio ghibli

Akira

Your name

The girl who leapt through time

Etc...

As you can see there's not much pattern to the genre. I watch just about anything

The only one I don't dare go back to is grave of the fire flies I was maybe 15 minutes in when I watch it 20 years ago? I bailed out after that The story is just too heavy for me

I wouldn't rank any of the above, mostly cuz I have bad memories and don't remember most of the details

I will just say OG mobile suit Gundam is my all time fav.