Great marketing or a great product?

I know this post is kind of out of the norm, but what the hell, I figured I would let it fly. Today I was thinking a lot about business and what makes a company successful. I was thinking specifically about marketing and I came up with an interesting scenario:

Say you had money to invest and you had to pick one of these companies to invest in. Both companies are in new industries that have pretty good potential for growth. Which one would you pick?

1. A company that clearly has the best product, but has an average or below average marketing strategy.
2. A company with an average or below average product, but has an outstanding marketing strategy.

The above facts are set in stone. You can’t say you would change their marketing strategy or improve their product. You had to pick one of the companies given the current facts above, with no assumptions as to what can or might happen in the future.

I am also aware that if you were actually investing into a company you would require much more information, and there are a number of factors that would sway your decision. But setting that all aside, and you had to pick one right now given the above information, which one would you pick?