Wich one?

I've been playing Pokémon Heart Gold for a while and resently caught a Igglybuff and a Nidoran(M). I'm going to evolve both of them. Igglybuff to Jigglypuff and Nidoran(M) to Nidorino. I have 1 moon stone and don't know wich one to evolve. Please post your opinion and why.

I forgot... is it Igglybuff which eventually turns into Blissey?

No it isn't. Happiny turns into Blissey but both evolves by happiness.

Oh.

Well,for me both types seem to be weak in battle,, A strong fighting type move and a strong ice type move can kill both of those Pokemon you have chosen