O dear, this could turn into a kind of religious war. :lol:
In between there are so many movements on the market, and most of us have seen only a little break of them in flesh or can tell anything from own experience.
I will not list three favourites because I feel a massive lack of knowledge to judge on it.
Moreover IMO it's not possible to answer the question or to make a ranking. What are criteria? Exactness, robustness, innovation?
From my very personal point of view the (GRAND) SEIKO Spring Drive movements are to me what I call the current crowning glory of watch movement evolution, but because of it's unique technique including electro-mechanical components one can't compare it with usual mechanical movements.
The new Jaeger-LeCoultre movement with no need for lubricant is IMO a brilliant innovation.
Among the "classical" movements, the Rolex basic movement 3135 and the chrono movement 4130 are great ones.
Audemars Piguets basic movement AP 3120 seems to be very reliable, too, but I'm proud on my daedal and delicate AP 2121.
/ Hal