Camerupt:Fine and put Body Slam on the last slot
Octillery: ive never used him so im not to much help here.
Vileplume: Your set looks fine except Heracross might eb faster than u. IMO this set is better:
Vileplume
-Sunny Day
-HP fire
-Solarbeam
-Synthesis
This set is good but will get owned by fire types.
Armaldo: I dont see anything wrong with it.
If your looking for a good Flygon se go with this
Flygon
-E-quake
-Crunch
-Dragon Claw
-Fire Blast
If your looking for an UU Psychic than go with Gardevoir
Gardevoir
-Psychic
-Thunder bolt
-Calm Mind
-Reflect/Destiny Bond
Go with Destiny Bond if u dont mind breeding. Other wise go with Relect.
Im not to good with EVs so i'll let someone else handle that.
Hope this helps.