Chansey wouldn't work out because of Happinny. Or whatever the little pink freak's name is. Also, I haven't read through the 12+pages here so I'll just toss out two ideas:
Munchlax
135/80/40/40/85/5
With item: (x1.5 to D and SpD as I understand it)
135/80/60/40/120/5
Hell just...