Which syndicated singing competition/show has bigger chances of producing an ACTUAL mainstay popgirl? (not some 1 hit wonders please)

American Idol (Carrie, Kelly, Fantasia. Carrie and Kelly are more country now and Fantasia was a 1 era wonder for the most part)

The Voice (Cassadee and Tessanne. Cassadee, idk where she is now but she's not pop at all and Tessanne is doing her thing in Jamaica now probably. Grimmie could've been that alt-poprock girl but some heartless soul decided to take out her future from under her permanently)

X Factor (Leona, Cher, Tamera, 5H, Samantha. Leona was a 1 hit wonder, Cher lost her momentum idk why but she had it going to be the angsty main popgirl but she just decided to stop her tracks. Tamera is still under Syco and she has what it takes, but she ain't releasin' nothin rn. 5H ain't a popgirl, and Samantha. That chick from Australia needs to get pushed as the foreign main popgirl everyone should root for cause that chick is visuals, talent and dancing all in one!)

which do you think can produce the first main popgirl earlier (if they ever do)

X Factor but it won't last long unless you're lucky.

American Idol have produced a few stars so it's possible.

The Voice, nope. Just a show to promote the celebrities rather than it being about the contestants.

None. They haven't produced a main pop girl ever.