Anyone got experience mixing/fixing bad vocals?

Hearing these modern punkbands live, it's like hey they can't sing. Okey some might... but it isn't very common. And when you're listening to a record, it's like day and night... Do they fix all this in the studio, or do they push the record button to the final take is on tape?

Hello.

I am working on mixing a couple of punk rock songs and was wondering. When mixing, do you like to use more than one reverb..ie. different ones for the drums, vox, guitars?

Just curious as to other peoples methods. Also, any suggestions on what pieces of the drum set to run through the reverb would be helpful.

Thanks,
Michael