1)It is a psychic type.
2)It can defeat all three.
3)It wins me tonnes of battles.
4)It has magic guard, my fave ability.
5)It has the best design.
Kadabra - Alakazam
Machoke - Machamp
Graveler - Golem
Haunter - Gengar
Golem have the best design, although I hate hate hate Geodude and Graveler.
YOU UGLY SHITS.
In not very found in Sp. Attack and both Alakazam and Gengar are Special-oriented Pokémon.
Golem is Physical-oriented, having 130 in Defense and 110 in Attack. Awesome :D
Alakazam is the best, followed by Gengar. His stats, movepool, and DW ability make him beast.
Gengar is much more useful than anyone else there.
Gengar because of it's unique typing, and great stats. Machamp comes after.