Internet Explorer by default, simply because that's what came along with Windows. Now, after antitrust investigations, European users get a choice of browser to install via ballot screen, and initial reports are not good for 'ol IE. According to Statcounter, IE use in France has dropped 2.5 percent since last month's implementation of the ballot, 1.3 percent in Italy, and 1 percent in Britain. It's still early days, and it'll take more than this to chip away from IE's 62 percent lead in the browser war, but it's certainly not a good trend for Microsoft. With that in mind, we're going to have to ask you to place your bets now.