A bigger baby means more gravity help, so should be easier... assuming the medical people haven't got you on your back so you're pushing uphill, so to speak (and you do have to push when it's going uphill). Suga is right, the support really lends itself to what sort of labour and birth you will have more than the baby in many cases.

Bec, I found the contraction pain, even when the epi wore off and I could feel the augmented contractions, was nothing. DS's had was nothing (but I had started pushing pre-epi). The pain inflicted on me by people other than my baby... that hurt quite a lot, but that hurt with an epi and I challenge anyone to not find it painful!