Neither have any acoustic treatment.
The closet is probably 7-8 feet long, 3 feet wide, and 8 feet high. It's got hundreds of clothes on two of the sides, the door is on one side, and the other side is bare.
The bedroom is probably 13 feet long, 10 feet wide, and 9-10 feet high. It has a Queen sized bed against most of one side, a computer desk and wardrobe against another, the door and bare wall on the side, and two windows on the fourth side.
Which of these would be the more appropriate room to use to record rap vocals?
Also any cheap suggestions on how to improve sound quality for either room?