I've used everything mentioned here along with several others (Bluebeam, etc).
While I agree that Foxit has many benefits (they write a phenomenal PDF SDK and have very fast rendering) -- for true power-users, I have found nothing that beats PDF-XChange (available here on SANET, by Tracker Software).
To clarify, PDF-XChange isn't the fanciest, definitely not the best looking, and it does have its occasional issues. It's not perfect. It's simply better and more powerful than the dozen+ others that I've used.
They also have a "lite" version that I use only for reading. It was discontinued awhile back yet it still competes with Sumatra and Foxit for the fastest rendering.
If you spend an hour or two with it, you likely will not realize why it's better than others. It's when you get into more advanced needs that you'll really begin to see the difference.
I also use Adobe's own tool from time-to-time. Not because I like it (I don't) but there are certain situations where it's the best tool for the job, unfortunately.