Really enjoying 3, finding 1 a bit of a slog, if I'm honest. I can see why it's reverted and everything at it is very, very good and cleverly designed, but it's just so slow coming to it after BB. And that's really hard to get around at this point. DS3 feels like it's taken loads from BB and I'm finding it much more enjoyable.
As for ML his magic attacks are quite telegraphed. His multi skull is easily rolled through, his short range one always comes from one side so go the other way and if he does the big one, dodge away from it. When he switches to the melee attack and sticking his sword in the floor, lock on to the sword asap and just shoot it. Keep moving, keep your distance and try get him in the air so when he heads towards you run under him and twat him in the back.
TOR... I never bothered with the bell ringers. Just fired up my saw blade, got round the back of him and killed him. I think I did him first go first time around.