VCT: T1.
I've been a fan of them since their 2020 days, back when they played against Code7, homeless, Moon Raccoons, Renegades, ANDBOX, Pioneers, and many more. Back when they had brax, ska, azk, DaZeD, Spyder, curry, steel, autimatic, dawn, seven, thwifo, etc. I was there for the "help sewers" era. I was there when there was a rumour that DaZed bullied Saya and the org bullied the latter into changing his IGN. I was there when they kept failing to qualify via OPEN QUALIFIERS despite being FAVOURITES. I was there when they kept changing the roster every two months and performed disgustingly. I was there when they finally moved to Pacific and had mid performances despite signing great players. So it just stuck with me, not because I am a LOL fan, but because I have been devoted to the ups and MANY downs of T1 Valorant.
VCL: don't have favourite teams, but I just support VCL Japan. Done so since 2021.