Debutant Modelling

I'm excited for my cousin's debut. Why? That's because she will be having a photoshoot for her debut this november. I asked if I could tag along her photo shoot and take some photos of her in traditional black and white. I'm thinking if I should load up on C-41 bnw, like xp2 or bw400cn, or do it old fashion and use ilford hp5s or kodak tmaxs. To any readers out there, can you suggest to me what to use as this would be my first real photo shoot. Thanks!