What type of nursing pillow did you like best?

Is

Type 1:

Type 2:

Type 3:

With my first I used one that looked like number 1, but I hated it. It was so big and I ended up never using it. It went around my back, making it really hard to sit comfortable. Maybe it was bad because I'm very petite. This time around I'm thinking of getting one in the style of number 2 and was wondering if you have any advice and feedback on what you think would be best for me? With my first I ended up using a regular pillow, but I wasn't entirely happy with that setup either.

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