No, it’s not a Sailor Soldier Tournament… this is the “Sailor VS Sailor” series, listing points where two Sailors’ characterisation and personalities are similar or different in ways that complement or contrast with each other. It’s an exercise in studying how the characters might interact, for roleplayers, fanfiction authors, headcanons, or fans who just want to explore potential relationships that might not have been in the original canon.
This list will almost definitely continue to be updated almost indefinitely. Feel free also to reblog with your own points!

Sailor Moon VS Sailor Jupiter

• Visually, these two appear to be opposites, but underneath, they’re quite similar.
• Usagi and Makoto both fall in love often, and hard. They often work together when it comes to romance. When they both fall for the same person, rather than compete against each other, like Rei and Usagi did in the anime over Tuxedo Mask, they work together and see each other as friendly rivals. In the episode where they both decided to chase after Motoki if his girlfriend went to Africa, they accompanied each other at each step - confessing, cooking, at the airport - and were completely open with each other about their motives and actions. It was a perfect example of “may the best girl win”. Neither of them harbored any resentment or jealousy towards the other.
• Both Usagi and Makoto are easily distracted from things they should be doing, primarily studying. Usagi distracts herself with video games and manga, where Makoto distracts herself with other chores such as cooking or cleaning the house. As a result, both of them get fairly poor grades, which they are often seen commiserating about.
• Makoto is an excellent cook with a natural flair for it. The amount and quality of the food she can make is often unbelievable, especially in PGSM. Usagi is a terrible chef; anything edible she makes looks hideous, and anything attractive tastes awful.
• Usagi and Makoto are both very generous. For Makoto this manifests in giving physical objects or services, such as cooking, or offering to clean, etc. For Usagi, she tries to fix perceived problems, cheer people up, or help them make friends/ask someone out, etc.
• They’re both very honest and have difficulty lying, if they ever try to.
• Usagi is relatively feminine. She feels free and comfortable enjoying traditionally feminine pursuits such as girly fashion, jewellery, accessories, make up, hair, etc. Makoto, while interested, feels awkward pursuing such things as she thinks they don’t suit her.
• Usagi and Makoto both dream, first and foremost, of being brides.
• Makoto is much more mature than Usagi, perhaps by necessity. Usagi grew up with her parents and still has her mother do most things for her - cooking, cleaning, etc. She has a loving family and a functional home. Makoto’s parents both passed away when she was young; it’s unlikely that she spent the entire time since their deaths alone, but her situation was obviously not ideal to the point where she decided to move to Tokyo on her own. She’s had at least a year’s experience under her belt of cooking and cleaning for herself, tending to her own apartment, budgeting her own living costs, transporting herself to and from school, being her own motivation and strength. She’s become adept at 14 at things that most adults don’t learn until they’re in their mid-twenties. Not only is there the legal and physical needs she has to worry about, but she had to find ways to cope with the loss of her parents. She has more life experience than Usagi. Death is a harsh reality that scares Usagi; Makoto is tragically aware of it, and she often alludes to it as a possibility when discussions of their duties turn dark.
• Usagi and Makoto are both very motherly and protective, in slightly different ways. Usagi wants to give the best to her friends and will try to take on their burdens. Makoto tries to physically protect them and offer occasionally stern advice, waiting for them to tell her how she can help.
• In the anime, Usagi was not very supportive of Makoto when she thought she might have a crush on Haruka. She was very keen on trying to convince Makoto that she was straight and could not be interested in a girl. One might argue that she was projecting.
• Usagi enjoys being the center of attention and often commands it to herself, even if not intentionally. Makoto, on the other hand, shies away from attention. She feels nervous wearing formal clothing, and suffers from extreme stage fright when featured on a cooking show in Sailor Stars. Usagi, inviting herself onto the show, feels no such embarrassment. Whether this is because she has a lot of self confidence or whether she’s perhaps too dense to understand why someone would feel embarrassed is debatable.
• Usagi knew nothing about fighting before becoming a Sailor Soldier, and knew very little afterwards. Conversely, Makoto was an exceedingly competent fighter, with fast reflexes, great strength and technical combat knowledge and experience. Before transforming she already landed a blow on Zoisite, and threw the MoTD over her head. Usagi half-believed that she was dreaming from the moment she transformed until she was first injured; Makoto adjusted remarkably quickly to the situation and was quickly fighting back.
• As Sailor Soldiers, their powers are greatly different. Usagi’s focus on healing, either herself or others, restoring energy, and cleansing monsters/victims, etc. Makoto’s are purely offensive attacks with no shown effects other than doing damage. She’s also physically strong and capable of taking hits where Usagi runs from physical fights. As Jupiter, Makoto also occasionally acts physically as defense, blocking others’ attacks with her stronger stamina. When seen as someone who takes attacks meant for other people and protects them in that way, their powers are somewhat more comparable.