You say you and your co-founder disagree on this, who does the most coding? You should go with what ever the one of you does the most coding prefers. There ar

You say you and your co-founder disagree on this, who does the most coding? You should go with what ever the one of you does the most coding prefers. There are new languages popping up every day, each with legions of fans telling you why the new language is better than everything else. In the end you can either spend your life being mediocre at every new fad language that comes out, or you can learn one language, and learn it well. As for me, I'm primarily a PHP man, but I do like Ruby as well. Of course my opinion doesn't matter, it's about what works best for you as a team :)