I like GHS Zakk Wylde Strings are talking about the regular boomers or different model.
Ibanez RG1570
B.C. Rich KKV
Jackson RR3
Jackson RR5
Ibanez S320
Ibanez S520EX
Dunlop Zakk Wylde Wah
Marshall 2203KK
Marshall 1960A 4x12 Cab
Boss ML-2 Metalcore
Coffin Case Blooddrive
They make the ZW strings which are really good for down tuning. Strings are kinda something you need to experiment with to see which brand and gauge you like best.