With sun and moon on its way out i was considering getting the pokebank and transfering all my pokemon from white 2 over. I have the full dex but they were all generated with an action replay. All the info i find is from 2014 where most pokemon went through but legendaries didnt always make it. Im wondering if anyone has more recent experience with this?

The Pokebank only checks certain criteria to ensure the Pokemon are valid. Such as, ensuring stats are within possible ranges, shiny locks on particular Pokemon and various other methods.

Lots of tools, lists, downloads and whatever have you available for all this.