For a legitimate answer I'm gonna be extra and break it down too
Keep in mind, I am a controller/pe player, unranked, so I'm not gonna mention any ranked kits
1. Fisherman
Depending on your pvp style, for most people Fisherman is op. With 10x cooked fish, and a fishing rod, it lasts long into the game. Fisherman kit is definitely most Godlike for non-rushers, mid looters and maps that have many chests. Although you don't get armour or an advanced weapon, you should easily be able to find armour and weapons in your spawn island's chests.
2. Buster
Buster kit is definitely op. With full chainmail armour, iron axe and 3x cooked steak, it's great for rushers and kill-hungry players. It lacks slightly on food, but as long as you loot chests for food and blocks, you can rush pretty much as soon as the game starts. You also don't have to worry about being unprepared when others rush you, whereas you do with Fisherman, as even though you have a lot of food, you have no protection, and you will waste your food quickly.
3. Farmer (i don't actually play this kit often so i cant remember if it has any armour)
Farmer kit is a favourite for skywars players. With 5x cooked chicken, as well as 4 stacks of eggs, it makes it easy to regain health as well as knock other players (if used tactically).
These are what I believe to be the 3 best kits for pe/controller, unranked
I usually use these 3 plus unranked pyro
If anyone wants to get me a rank tho, please do baha