I've heard a lot of great things about the Emerald City Con. Several of the veteran Web Artists that I talk to have told me it’s the best Con for WebComic Artists in the US. So you can imagine it’s the place to be if you’re a fan since you know you’ll see a lot of great artists and there work. Not to mention Dave Kellet and his free sketches to Sheldonistas. That’s a combo that can’t be beat.
Wish I could attend but the scheduling gods don't favor it this year. It's definitely on my list of conventions if all goes as planned for 2009.
But I do go to the International Comic Con in San Diego every year. I plan my season around it.
I wish you a safe trip this year and hopefully next year I'll be there as well.