Well at least I actually picked 6 territories this time, as I would end up needing it. Its a testament to The Impaller's skill level that he was able to beat me when I knew all 3 of his starting spots :/
Interestingly enough, I started doing a little research today on how knowledge of the opponent's picks affects winning percentage... and knowing all three was actually the worst possible thing, based on winning percentage! It was a pretty small sample size (it's only happened about 20 times, if I remember correctly, don't have the data in front of me), so that could be partially attributed to chance. But it really surprised me. I'll post a thread about this when I finalize the data.