Wenge BCBG because even if you will get recruited you spent your whole life in the reserves and if you are lucky just getting in the 1st team after 5 years spending in the reserve while in every other band many get slowly or immediatly a place in the first team and someone times even becoming in no time one of the main stars.
You were wrong about Nouvelle Ecriture, they didn't had that much singers than Quartier Latin. Just look to the Attentat-squad and that many singers that stayed behind for Attentat-recordings. Also during the Effrakata & Affaire d'Etat were many singers, but they were just unlucky that they weren't known, many then decided to leave except Asso and Junior Kingombe. Many people also don't know that Quartier Latin was overcrowded with singers during the Ultimatum, V12 and Magie-era but many not getting a chance. Celezino was one of those many guys. Also about Nouvelle Ecriture there's no band where musicians were getting space to sing and release songs like Nouvelle Ecriture. Just listen to A La Une, Somo Trop & 'L. In A La Une, there were 3 musicians that released 2 songs; Tosha Bass, Pathy Patcheko & Alpatchino (if we count the song he arranged for late Isthari then it will be 3). Until this day singers of other bands have massive respect for singers coming from Nouvelle Ecriture. Don't you see how the way Ado Yuhe receives them (along with those of Victoria Eleison) and give them massive respect, when interviewing them. Because he knowns that they don't joke when coming to singing, while others are more focused about cars, women and dancing.