Well, I just answered Dr. Flame's, I guess I could try this one.
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Crobat
Looks good, although you might want to replace Taunt with Cross Poison, as Crobat won't survive very many hits anyway.
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Rotom-C
I honestly don't know where "C" came from, as it's "Rotom- Mow. Like the strategy going on :)
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Cresselia
This thing makes a surprisingly good wall. And staller at that. Try this set:
Cresselia (X) @ Leftovers
Trait: Levitate
EVs: 252HP, 252SpDef, 4Def
Calm Nature
Thunder Wave
Substitute
Protect
Safeguard
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Chandelure
I recognize this set from Smogon. I'd use Fire Blast if I were you. Change the 4SpDef to 4HP.
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Hitmontop
Looks mighty fine.
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Durant
Great set.
I like the team! Pretty good.