I pretty much spend my time in all of the places..
1.) KH - I LOVE the community and the very helpful, quick answers I get. I like the 'smaller' feel and the sense that everyone here really truly enjoys discussing and helping other knitters. And the videos/tutorials have saved me more than I care to count!!
2.) Ravelry - I am a moderator of a newbie group, "Moving Beyond Rectangles."
So I am there checking the group and searching for patterns! I am also involved in various knittin groups with other same hobbies over there (like scrapbooking, reading)
3.)Blogs - I am so addicted to knitting and craft blogs. Just to see what creative things people can come up with tickles me. I LOVE reading the blogs: it's so personal. It's like peeking in the window of someone's life. I also love the free patterns and the ideas I get from them.
4.)Other forums - I pretty much check out any forum that has at least some knitting. I check out alot of general craft forums that include knitting in the crafts and enjoy checking them as well.
I so cannot choose a place I spend most of my time because I spend alot of my time for each and for different reasons. And I can't accurately tell you where I go first because that changes everytime I get on the computer. It really just depends on what I need when I get on the internet.