I used to use D'Addario a lot because they didn't break as easily as other strings, but I found that they go dead quicker than a lot of brands. I've been using exclusively Ernie Ball something or others (.11 to .54 w/ unwound G) and have no complaints.
i second the DR. they stay bright for a really long time are much more slinky and dense. you pay a little more but it's so worth it.
ernie ball are total junk
d'addario are my go to strings if i can't get any DR, which isn't so much of a problem now that stores finally carry them on a regular basis. although nobody carries the heavy gauge DR bass strings except for B-Sharp.