Japanese dub, english subs - always :) I cannot fathom it in other way... Well, there might be some small exceptions like Space Dandy had solid English dub, but still it's a minority :)
Frankie with his DayZ series. Strife from YOGSCAST with his Strife Solutions. DayZ Overpoch and "ArmA Life" (i.e Stratis Life) mod played by TheDevilDogGamer. There are more, but for now these three come to my head :P
Hmmm... for me it feels rather hard to point out only five titles, but well - here we go:
Attack on Titan
Fullmetal Alchemist (including Brotherhood)
One Piece
Puella Magi Madoka Magica
Zankyou no Terror (even though it's really new it's great)