these 4 are my favorate female singers. i used to like jane and sitar more. but now i am tia's biggest fan. jessie j is unbeatable before D5. and after that her voice become very sharp. tia and sitar have better upper belt than jessie. jane has the most beautiful head voice. tia and jessie can whistle. i think tia do a better job.
Not really familiar with Tia Ray and Sitar Tan but... Lows: Jane >> Sitar Tan > Jessie J >Tia Belts: Tia> Jessie J > Sitar Tan >> Jane Head voice/falsetto: Jane >> Sitar Tan/Tia Ray >/ Jessie J
I hope that you can bring Laure Shang（尚雯婕） the next time when you make a battle video. This is her live vocal range ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ISdaxul9nSU.html
Jessie J is FAR AHEAD every other one in this video. Its not even fair to compare them cuz they just dont compare. HOWEVER, I was incredibly impressed by Sitar
LOL Jessie actually has the worst technique overall out of the four, Jane has the best head voice+best lows and both Sitar+Tia have better belts. Jane's belts are better than Jessie's as well considering she's a mezzo while all others are sopranos.
