I've run all the servos mentioned so far in my 60 size sticks and I liked them all

Ones that didn't do so well were the discontinued Hitec 300's that have pots that go bad and the Futaba 148's will wear out the top bearing in short order.
the 148's are easily repaired with a new top cover.

Hitec 322's are cheap and seem to last forever

The Hitec 425's have 2 ball bearings. One on each end of the output shaft

The Futaba 3004 only has one ball bearing in the top cover