"Pokemon list sorted by usefulness"

#PokemonGO: Generic wording I know,But from the point of view of a casual at 1100/1200 bag space, who's not concerned with a living dex how do you decide what to keep and what to blend?I'm generally keeping the high CP/good attackers, but also want to keep an eye on stuff I can evolve in later generations and feel it's sensible to keep one max evolution with decent CP+IV for future evolutions (I know this may not work if alternate evolutions like polytoad come along but it seems the most space efficient)Also keeping a couple of the regionals in case I need to tradeBeyond that how do you plan for the "evolve 5 water pokemon" tasks? via /r/TheSilphRoad https://ift.tt/2MBoXhI