Form I: Shii-Cho
Most like = Kendo
Basic balanced two-handed form
High-Guard
Specialist Master = Kit-Fisto
Notable Others = Luke Skywalker, Yoda
Lightsabers = Ezra Bridger, Kal Kestis, Qui-Gon Jinn, Sha'a Gi

Form II: Makashi
Most like = Renaissance Rapier
Gladiator-Guard (side guard)
Balanced one-handed form
Specialist Master = Dooku
Notable Others = Asajj Ventress
Lightsabers = Dooku

Form III: Soresu
Most like = Italian Longsword
Mid-Guard
Defensive one-handed form
Specialist Master = Obi-Wan Kenobi
Notable Others = Luminara Unduli
Lightsabers = Obi-Wan Kenobi

Form IV: Ataru
Most like = Wushu
High-Guard
Aggressive one-handed form
Specialist Master = Yoda
Notable Others = Ki-Adi-Mundi
Lightsabers = Yoda

Form V: Djem So
Most like = German Longsword
Low-Guard
Advanced aggressive version of Form III
Specialist Master = Luke Skywalker
Notable Others = Anakin Skywalker/Darth Vader
Lightsabers = Anakin Skywalker, Luke Skywalker, Kanan Jarris, Tarre Vizla (Darksaber), Darth Vader

Form V: Shien
Most like = Aikido
Mid-Guard
Aggressive acrobatic version of Form III (reverse grip offhand)
Specialist Master = Ahsoka Tano
Notable Others = Plo Koon
Lightsabers = Ahsoka Tano, Galen Marek

Form VI: Niman
Most like = Kenjutsu
Mid-Guard
Balanced (twin and dual lightsaber heavy) form
Specialist Master = Darth Maul, Darth Revan
Notable Others = Cin Drallig, Exar Kun
Lightsabers = Darth Maul (dual), Darth Revan

Form VII: Juyo/Vaapad
Most like = ???
Low-Guard
Aggressive two-handed form
Specialist Master = Darth Sidious
Notable Others = Mace Windu
Lightsabers = Mace Windu, Darth Maul (single)