Neither- its entirely up to you! the best is the one which is trained the best
u can trade a girl nidoran for a boy nidoran w/ a little girl sitting next to one of the underground tunnels.
Nidoran (boy or girl) evolves on level 16. Boy- Nidorino nidorino w/ moonstone = Nidoking Girl- Nidorina nidorina w/ moonstone = Nidoqueen
Grimer, Koffing, Nidoran Boy and Girl and their evolution chain.
There is only one daycare, and it is always random if it is a boy or a girl. Exeption: Rotoms and Phiones will always be genderless. Note: I do not know how it works for Nidoran.
A little girl in one of the underground paths will ask for a nidoran male if you give her one you will recieve a nidoran female.
When speaking statistically, Ekans would be stronger than Nidoran (Male) in terms of base stats. But, many things can influence the stats of a pokemon (drugs, more experience, etc.) Such things can make pokemon like Nidoran (Male) stronger than Ekans. But when a word like "better" is used, the question is a matter of opinion and can not have a valid answer.
it is both it is better for a boy and a girl
Gotta go w/ the original... Nidoran F & Nidoran M.
From my opinion, any form of nidoran is better than gastly. Nidoran has more physical moves like poison jab. Koffing has smokescreen or something similar.
girl
nidoran female evolves into nidorina at 16. after that u need a moonstone to evolve into Nidoqueen. same story for nidoran male. 16 and then moonstone for nidoking
girl