I've only until recently been unsure of which way is more likely, Creation or Evolution/chance but after listening to far too many religious nutters try to defend a six-day creation, there's one thing I am sure of:
We're slowly de-evolving!
There seem to be more stupid people every day and sooner or later we're gonna have to go to war and wipe out the weaker species or we're simply going to de-evolve back to primates. It'll be freakin' Planet of the Apes but instead of talking and putting humans in bamboo cages and building little cities we'll be playing with out own poo and speaking in tongues.
And no, I don't feel like discussing why I don't believe the world was created in 144 hours with a 24 hour rest for the big guy afterwards. It's just too exhausting, and will only further out de-evolution.