Personally I prefer using all the above.
One caution though, break in discs like the one from Purist and Granite Audio are valuable tools but these programmed noises and sweeps can really press the limit of the system.
Just like breaking in a new car, sitting at idle, driving stop and go mixed in with highway speed make for a nice balance of forces. I believe mixes in choice of music program is good too.
I will say that as you get nearer and nearer to the magic number of hours on your speakers when most of the break in has been achieved, it is often necessary to play some really demanding, hard driving passages with powerful bass. This will have to be at both moderate and high sound pressure levels (at least for brief periods of time).
I would not go too crazy with test tone CD's burn in discs, especially when the speaks are brand new. Give them a slow start and work up. Everything is tight when new and there is only so much you can do to shorten the break in period.
You didn't mention speaker brand, but some of the really high quality drivers like those in Dynaudio, Kharma, Sound-Lab and the Dali Megaline require from 450 to 800 hours before they balance out sonically. The Dali and Kharma are slightly worse than Dynaudio and Sound-Lab at coming around.
You might post what brand and model speakers you bought. With luck, an Audiogon member has that identical model and will weigh in with their experience about how many hours theirs required.