Just FYI, I based my opinion on the members chinese and western zodiac, as well as their individual personalities. Let me know if you agree or disagree with what I chose!
I chose Earth bender for Namjoon, because of his steady and dependable nature as leader. I could also see him as an Air bender because of his intellect and teaching characteristics, but decided on Earth mostly because of this gif. Do you see how he doesn’t even flinch when all that weight landing on his back? Stability. Dependability. Loyalty.
I think Jin would be a Fire bender because he’s so expressive and fun, but also hard-working and ambitious. (He got his degree and owns side businesses all while performing as BTS!) Fire bending fighting style is also very direct and simple, which I think Jin would appreciate. He’s very self-confident and fearless, which is a true Fire sign quality (”Do you know BTS?”).
Min Yoongi - Water (+Healing)
Yoongi is a bit of a recluse (with hidden depths of emotion), but he’s also creative and adaptable. Water bending fighting style is about redirecting the other side’s force, making it good for both offense and defense (Aka cypher clap backs? ^^). I think Yoongi would also be secretly talented at healing (Like how he always silently helps the members behind the scene). But if Ice bending were a thing, you know he’d be all about it.
Hobi is very sociable and light-hearted. Air benders fighting style requires a lot of agility, which he has in the boat loads. He also doesn’t care about what other people think about him, and just remains true to himself, very free-spirited. He wants to be a piece of peace for people, so the evading type of attacks suit him best to avoid direct confrontation. (Plus, Air element types are known for being good teachers and we all know he helps teach BTS members their choreo.)
Park Jimin - Earth (+Lava)
This is the first member that really deviates from their star sign, but I felt that Jimin is too much of a perfectionist and too organized/controlling to be anything but an Earth bender (almost made him a Water bending because of his fluidity and flexibility alone). Like Namjoon, he’s very loyal and dependable, but he also has a bite to him, which is why I added the Lava bending bit (duality like woah). I think people too often assume Mochi is just all softness, but remember the sleeveless era? Jimin is all muscle, baby. (Dare to say, short and stocky? lol Don’t kill me PJMs)
Kim Taehyung - Air (+Spirit)
This boy was so hard to place. All 3 of the maknae line were a bit difficult to be honest. Based on his zodiac, he’s both Earth and Water, but based on personality characteristics I felt he fit more into Air or Fire. So basically I was like, uh maybe the Avatar? (He’s certainly unique enough!) But then I realized that Air types are very intellectual socialites and non-conformists, which really explains Tae’s character spot-on (with his strange but also ingenious way of thinking). He’s also a very care-free and go-with-the-flow type of guy (remember when he got lost on BV1 and was totally happy?). This kid probably spirit-projects all the time in his sleep and thinks it’s totally normal.
Jeon Jungkook - Fire (+Lightning)
I vacillated hard between Earth and Fire for so long for Jungkook, but once I remembered that Lightning was a thing, I knew. JK is passionate and expressive (though maybe not the best communicator), and he’s very charismatic (which is why he’s always front and center in dance choreos). I think he would enjoy the powerful and direct fighting style that Fire bending has to offer (He can be very blunt when he talks to his hyungs, though never rude.). Plus, he would be the type to push himself until he could have blue flames (like Azura!) and control over lightning. He might even end up with the combustion ability!