There are some good youtube videos of chopping down trees with an axe. eg: https://www.youtube.com/watch?v=qCshw5x-Ezs. I don't know about you Moley, but this guy looks a bit more muscly than me, and it still takes him a long time to fell it.
I don't know if anyone on here has visited The Royal Welsh Show, Moley no doubt has, but one of the highlights of it for me are the Axemen display and the wood chopping competitions.
Muscle, technique and a very sharp axe! Absolutely fantastic entertainment.