A & M NS. We also use our own home-produced book of about 50 worship songs/modern hymns etc. That allows us to to get a decent collection of the better stuff while avoiding the dross and - if you have a CCLI licence - can work out cheaper than buying a set of new books.
I have to say I'm rather taken with 'Hymns of Glory, Songs of Praise'. Plenty of new and unusual stuff but that's no bad thing and many of the word settings are very good.
Steve