YOU mostly...

but I use all 3 depending on my state of mind

We.

Surely it depends on whose dishes they are?

If they're mine, I'll think "I need to wash the dishes."

If they're mine and other people's, I'll think "We need to wash the dishes."

If they're just somebody else's, I'll think "You need to wash the dishes."


Strange question.

Some people use we?

I

You, I don't do cook and dish

I talk to myself without referring to any person. "sth should be done"

C

I always use We since i think of it as my brain and me talking