I think this was a pretty good comparison actually.. What strings one prefers is very subjective of course, and depends on the bass. Me playing passive J and P basses most of the time, I found this video useful.
I used a nice pair of headphones (Sennheizer 650) and below is my list, #1 being my favorite and #8 least favorite:
1- Ernie Balls
2- Rotosounds
3- DR
4- Fender
5- D'addario
6- Dunlop
7- GHS
8- Cleartone
I like the balance of the lows, mids, and highs best with the Ernie Balls.
I didn't know I'd like the Rotosounds that much. Although the Ernie Balls sounded the best to me, the Rotosounds were very close.
And the DR was close to the Rotosounds, they had a little less mids IMO.
I also thought the Fender would be one of my least favorites, but they actually sounded nice, just lacking a little lows.
The D'addario and the Dunlop sounded very close, I found the former a little more lively.
I'm very surprised about the GHS being near the end of the list as people rave about them so much. They were too boomy for my taste (I guess 'boomers' is a good choice of name).
The Cleartones were not clear at all, they sounded very dull to me and the worst of all.