Butla or Grenada are for sure your best bets to get a 3 lb+ crappie.. My stupid butt caught the biggest crappie of my life while bass fishing a tournament in the spring of 98... 3.7 lbs on a digital scale... I let it go.
You've got to add Washington to that list. A few years ago I would've put Bee Lake on it also, but not now. Grenada is, at the moment, THE place to be.
The two best times to fish (when it's raining & when it aint). Proud member of team GitDaFeeshGrease