I'll go through these one by one.
Murkrow- I'd use the Taunt+Sucker Punch combo instead of Brave Bird, because I don't like recoil much. Other than that, it's a good pokemon.
Throh- Not much I would change here.
Cinccino- Replace Sing with Rock Blast, 125 BP attacks with no repercussions are kind of brutal.
Haunter- Evolve it into a Gengar, as there are no disadvantages with your current setup, replace Shadow Ball with Hex, because of Will-o-Wisp, and replace Sludge Bomb with Focus Blast, because if Sludge Bomb is to cover your weaknesses, then Focus Blast will do a better job of it. (Hex covers Psychic and Ghost weaknesses, Focus Blast covers Dark.)
Armaldo- Use Stone Edge instead of Rock slide, it has 25 more BP. I'd also transfer def EVs into HP.
Rotom- Choice Scarf and Volt Switch don't go together well, either take out the Choice Scarf, or take out Volt Switch. Either way, replace Trick with Shadow Ball (a speed-boosting item will only annoy Gyro Ball users, and I don't see how it will help you much otherwise.) If you take out Volt Switch, replace it with either Signal Beam or Uproar, your choice.