match rating is always poor in RS till season 47, hoping it change for good.
@hollu 532 is a common formation useful to grind result against tough opponent and because its too good, everyone decided to use it, instead seeing it used against them. So its now popular.
433 another brilliant and working formation but few knows how to use it.
Other formation is usually useful depending on strength of your opponent.
most important aspects is getting to train your players in a right away before choosing the right formation and tactics for them.