Bamboo is the most absorbant fabric per weight of fabric. I have never been able to get my DS through the night without several boosters in a Bamboo nappy though... and usually a fleece or wool wrap works best.
It's really trial and error depending on what sort of wetter she is, so to be honest although everyone has a favourite, it's unlikely to be the perfect thing for your child.
One thing I will say is to go with what she feels - if she's uncomfortable she will say so. Obviously add some boosting in if you find she's regularly too wet when she wakes, but go with what works for her.
Similarly, as she's only little still she may look buried in a boosted nappy. Again, don't worry unless she does - it's not a problem as long as she's comfy and even though it may look uncomfortable it won't be unless she says so - and she will soon tell you!!
Our bamboo boosters are very slim and absorbant and a nice overnight booster for any nappy, but really you can use pretty much anything to boost out your fav fitting nappy.
Bamboozles are great, but Wham-Bamboos are better as they have wider waist tabs which fit for longer over boosted nappies! The booster inside can be taken out to fit better on little babies.