In order to make a quick response. It is ALWAYS GOOD to aim to be the best in your field. Period. However, the longer answer, should be: it depends. Seth Godin said that you can’t be the “next Seth Godin” because he is still around! That made me think of options and alternatives. You can’t be Roger Federer in tennis, because he is still there. Hey! but you can be even ‘better’ than him (check at the ranking right now). This can lead to discussion, because, besides ranking, there is a LOT, a LOT of people that consider Roger as the best tennis player of all times, no matter his current ranking position (and I have to say, that I completely agree). You can’t be Lionel Messi, because he is still there. Anyway Cristiano Ronaldo won the latest Golden ball prize. What’s my point? Again, it’s great to aim to be the best in your field. But, you may be choosing the wrong field, or the right field, but with the wrong difficulty. Does it make sense to be the Google of Search Engines? Yes sure, but the dificulty is VERY HARD. You can aim for that particular long tail that Google doesn’t do quite well, if there is such a chance. But, always, difficulty is (almost) IMPOSSIBLE. – Aim for the best – Check who is already there. – Check difficulty – avoid being a copycat. That’s all, thanks!