I have a Squidoo account, but there's something about the way they do things on there that really doesn't work for my own purposes. Believe it or not, all the orange and cartoon-y looking stuff on there was enough that I could never say on there for any length of time.
This site always worked well for me, and I started to really like the whole look (etc.) of after they did some refining and made it look more polished. I haven't been all that active on here recently for my own reasons (only one of which includes the fact that I'm trying to clean out a bunch of REALLY old Hubs, re-think what to do with some, etc. etc. Other than that, my reasons have nothing much to do with HubPages, or even my online writing at all.)
I don't really know Squidoo - especially since they, like HubPages, have done a lot of changing of things (rules, etc.); but they used to seem very Amazon-sales focused to me - which isn't really my focus.
Things are straightforward on this site. You pretty much either get traffic to a Hub or don't. Over time you get paid. That's it.