Okay, just for reference, here's a list of the hazard setters and Rapid Spins, since a lot of people are going to be interested in that. Have fun! Let me know if I've forgotten anything.
Stealth Rock users:
Camerupt- Dwebble
- Gigalith
- Kecleon
- Lairon
- Lunatone
- Magcargo
- Mawile
- Metang
- Monferno
- Omanyte
- Piloswine
- Rampardos
- Relicanth
- Shuckle
- Solrock
- Sudowoodo
- Wormadam-S
Spikes users:
- Dwebble
- Glalie
- Maractus
- Omanyte
- Whirlipede
Toxic Spikes users:
- Ariados
- Beedrill
- Omanyte
- Whirlipede
Rapid Spin users (and Natu):
- Baltoy
- Delibird
- Natu
- Sandshrew
- Spinda
- Staryu
- Tentacool
Obviously, Gigalith is going to be huge, and Rampardos all of a sudden becomes the best anti-hazards pokemon since it pretty much beats all hazard setters through Sturdy and the use of Stone Edge / Superpower / Earthquake. Pretty much Metang is the only pokemon that can set up against it... huh.