What is the ideal birthing position?

The one that..... Easy - the one that works best for you! good luck.
Squatting. It depends on your body size, the baby's size, and whether or not you have an epidural. Generally though, gravity always helps and squatting will also help. Women who do yoga and pilates, both activities that strengthen your back and abdominal muscles do very well with pushing. Also swimming is an excellent activity to prepare you for pushing.