Apologies for the double post - just letting you guys know I have done most of the bullet points for the analysis. Kept everything under one set as Tentacruel only really has one role in BW2. Don't hesitate to point anything out if I've missed something/made a mistake/said something stupid etc.
@Joel: Interesting set, however I don't believe it deserves its own analysis. I've given Acid Spray a mention as an OO, though.