GOD dammit you're talking majiuana benifits again....
I'm not getting into it here, see my post in the marijuana debate thread.
As for picking one or the other: Neither!!! Smoking weed and tobacco is terrible for your health, increases your chances of throat, esophogous, lung, mouth cancers, dulls your senses, and any possible benifit you could POSSIBLY have is offset by the fact that it FUCKING KILLS YOU!!!