I'll be avoiding any major leaks that happen this time around. I'll read the info that goes up on CoroCoro or the Pokemon site, but I'm staying away from forums once the game starts to leak or people receive it early, etc.
Like others have said, being able to experience the game the way you're supposed to is far too much of an opportunity to pass up. Usually we've had to wait months, if not over a year for the English versions and it's never been worth trying to avoid everything with that kind of release gap. But even if we're a week or two behind Japan this time, that's nothing.