Just to add to the topic, I just purchased an American Made Marcus Miller 5 string Jazz Bass.  With the bass being what it is I decided to put DR Fat Beams on it, well I tell you, they stayed on for two days before I switched to my beloved XL170-5's.

The Xl's intonated on the dot and much quicker and I could play these how I like. I like to dig in slightly and with the DR's they were too buzzy and harsh sounding and feeling.

For Marcus, DR's work for his aggressive slap&pop style but for me I'll stay with XL Nickels from now on.   

God wants spiritual fruit, not religous nuts!

Then there is the 2nd level of manufactures that make very good strings:  Fender, Ernie Ball and Dean Markley.

Then there are all the rest.  If you can't find a string that you like from one of the six listed above you have a very big problem.

I prefer pure nickel strings so I have been using GHS burnished nickel strings for some years now--they are one great string,--but if I was going to use a nickelplated string I would definitely use D'Addario's XLs.

On my acoustic I use Gibson Masterbuilt Phosopher Bronze, but if I couldn't get them I would, once again, definitely use D'Addario Phosopher Bronze.

I didn't know that D'Addario had started making pure nickel stirings, I guess I will have to check into that--but they will have to be something else to beat GHS's burnished nicke.  That slight burnishing really makes a difference in tone and feel. They are  brighter than other pure nickel but still not as bright as nickelplated steel and they just fantastic for string bending.