Bring the tree, your daughter will love it. So will the other guests, if you put it on the table in front of the window.
We have been to value resorts the last two Christmases. The first year I was surprised by how many people decorated their windows and doors. I never thought about doing it, I guess. Needless to say, we brought everything but a tree last year. Even my grumpy DH got into it and spearheaded hanging the lights.
The decorations by the guests are the only ones by the rooms. And, it helps you find your room!