Which Hybe group is the best in vocals?

I'd say Seventeen currently.

Keep in mind though, the only vocals I have really paid attention to is BTS, LSFM, Seventeen, and New Jeans.

So that means, I have no idea much about TXT, Fromis, BoyNextDoor, TWS, or I'll It.

Seventeen

Seventeen and Fromis9 because seventeen has like 98 members and fromis9 had to audition on TV for like 3 months so its guaranteed to have vocal talent

as if we have lots of options.

I was honestly pretty surprised at NJ's encore performances. Maybe a weak spot or two but overall I thought they sounded pretty good for a live kpop act.

Overall though I think Hybe has long been at the forefront of "we don't care about vocals, we'll fix that shit with computers. Now be hot and dance!"