In my opinion, and within the context of my considerable experience, the best bow out there is the one at the end of a steady arm and a steady mind.
The most instructive lesson I have had about bows happened at a traditional shoot. A guy in his 60's, shooting a homemade osage ELB, shut everybody else down, including some archers with very pricy well known bows.
Having said that, there are some great bows out there; some can be had in a month for under 500.00, and some can be had in a year or more for 1200.00, but the reality is, none are magic, but there are some magical archers out there.