What Are The Best Automatic Watch Movements ?

Just about every day we see watches with a variety of automatic movements in them. They have names like, ETA, Unitas, Sellita, Claro, Valjoux just to name some. Often with various numbers next to the movement name, like ETA 2824, ETA 2892, or 7750. I really don't know what all the numbers mean, just that they are supposed to be good movements. Can the various watch movements from around the world be ranked ? Also this question pertains to all the various Swiss, Japanese, German, Chinese, Russian etc. movements as well. Is there a "best" or "top" automatic watch movement ? If ZMT were to rank the automatic movements, what would that list look like ? Thanks, any and all opinions will be greatly appreciated !

Wow guys ! Now I know why I am just the learner ! Many of these movements you guys listed, I wasn't really aware of. It's great to have the names on hand now, so I can write them down or go back and memorize them. Amazing the wide variety of automatic movements that are out there ! Hopefully, I'll experience these someday in person, until then at least I'm finding out more about the many automatic movements and how good they are. Glad to have your opinions...thanks !