depends a lot on the player's touch i think and whether you want to have a lot of "fret clank".
i like to keep it clean so no strings hitting the frets from a hard attack.
i have a medium touch when i'm playing but like the action as low as possible.
on my 35" spector i used 45-130 DR low-riders http://www.drstrings.com/catalog/lo-rider-bass
they're a little stiffer than common bass strings which i liked a lot and they worked for my style.