I gave it a 3. I think I was just too disappointed by how it all played out.
Sorry to everyone that I'm not quoting but there's too much to go back to. But some of you made some great points.
I think the Dothraki part in it all was dumb but was necessary because it's that "holy shit" moment where the rest of the living look on and see the Dothraki don't even last a minute. No one could match them in open battle and they just go defeated in seconds. But then the dead come and literally trample all over everyone. And yet they somehow mostly all survive. That makes no sense at all. Jamie, Brienne, Tormund, etc had hundreds of dead on top of them but they somehow manged to still get up. Same as Jon at the end when the Nigh King raises all the dead. He's surrounded by hundreds of thousands of dead but somehow manages to survive long enough until help comes.
The person who commented on Theon staying back with Bran, I agree. Theon should've had a dragonglass sword and fought and killed a White Walker. Then the Night King says enough (in his head I guess), fights Theon, and then kills him. But we never even get to see the Night King fight. Would've liked to see Jon, or anyone really, fight him at least once. Now the Night King and the rest of the army of the dead are gone without us really even knowing what their purpose was.
Also agree that Jon and Bran were basically useless during the battle. Thought Bran would've done something to help them. Or Jon. Instead he just flies around aimlessly.
I just feel unfulfilled after that, which is fair since we're not all going to be satisfied with the ending of the Night King. It was just too much flash for me and not even substance. And it was too long. I honestly started getting bored halfway through when I realized the living would win. I thought it would be Bran to kill him somehow though.