What strings do you use?

D'addario via JustStrings.com bulk sets (unbranded, but they're D'addario).

Have tried Dunlop (not heavy core, just standard) pretty extensively (8 week tour) and they die way too quickly to be of any real use, especially for bass.

Haven't tried EB in years but I remember them being tinny feeling/sounding. Keen on trying the cobalt strings, so we'll see.

I really wish their international shipping wasn't so expensive. By the time I include shipping and import duty then their bulk strings are just as expensive as buying separate packs of branded D'addario's.
 
IMO strings are a personal preference. I love Ernie Ball strings. They are smooth and tight. They last fresh a month approximately but even then they sound better than D'addarios or DRs. Once again, this is just my personal preference. To me it just feels like other string brands sound like worn down Ernie Balls. Sure I haven't tested them all.
 
Ernie Ball 10-52 here. I've used Elixir extensively, but especially since I got my PRS with winged tuners, changing strings is fast so I don't mind that, so I prefer to change more often nowadays. Brand new non-coated strings sound better to me than new Elixirs, although Elixirs keep their decent sound for weeks and weeks, while non-coated may lose it after a few days of extensive use.
I've also tried D'addarios and they sound and feel very similar to EBs in my opinion, although EBs with the same thickness felt a bit smoother and softer in terms of string tension.

Did anyone try the Titanium EBs?
 
EB's on one of my guitars, D'addario on the other one and the bass. 12-56 standard B and Bb, respectively. low b is still kinda loose, could stand to up it to 58.