I think in the black community TLC was more iconic for them
I think internationally DC is viewed as the bigger girl group
Both slayed though.
But aside from the numbers I say DC> because they had it all.
The looks, the vocals AND the dancing. AND the music.
They learned from the greats like En' Vogue & TLC and made their own new thing.
They were the most iconic.
TLC were definitely trailblazers and iconic in their own right though.