I think that what I like about HubPages the most is the freedom to write on just about any topic you can think of. In fact, writers are encouraged to do so.
I also like the friendly atmosphere among hubbers and the helpful attitudes of the writers and the administration. Whenever I have sent an email about a problem I have been responded to promptly and helpfully. I remember being confused about where to put the tracker in a link (duh, huh?). For some reason what I was reading about it, especially the _ part at the beginning didn't make sense as if I were interpreting the many answers to similar questions incorrectly. Right away I got an email and issue solved (and they didn't make me feel like an idiot!).
And I have noticed that HubPages compensation exceeds any website I have written for or investigated. I would say that when speaking about online article writing, HubPages has been very generous. It's hard work, but they have been generous.