Based solely on my personal experience (not much at that) here's how I'd rank them.

Benbrook - has some big crappie so chances are good that you might get a two pounder. I haven't caught big numbers very often.

Aquilla - has an abundance of crappie. I have caught limits on numerous occasions (and not during the spawn). A 14" crappie is a big one (at least for me) on that lake.

Arlington - has a good mix of both lakes listed above. Some large fish and also some good numbers.

I prefer Aquilla because there are no houses and no boat docks. So there are fewer jetskis and water skiers.

Let us know how you did!