Because I did not receive a timely response, I had to try them all. Here is an answer for those who might have the same question.
Paint Sticks are not much better than just rollers and pans, alone. It took me 6 hours to paint a ceiling and one wall with primer. The paint also drips out of the roller from the "seeping points" way before the roller gets saturated, so it was tough to keep the roller full of paint without paint dripping on the floor.
I bought a power sprayer to do the next room (and finish the first one once the primer dried). The sprayer is by far worth the money. Very quick and easy to use. Plus it is far more fun. I also bought a giant spray-shield (like 3 1/2 feet by one foot with a large handle, which made spraying the edges rather easy. (Much easier than masking everything). It took me only about 40 minutes to do a smaller ceiling and wall. The coverage was also better.
The only downside to the sprayer was the overspray. I have unfinished subfloors exposed, so it did not matter, but carpeted or other finished floors as well as all trim and door knobs and such should be completely covered to prevent them from getting sprayed. Otherwise, the power sprayer is by far the better option, and worth the extra money.