I think any of those would work well Corey.
Mine was suspended, unless you count the other plants in there that it had to touch... It was kept pretty full of water (about a foot deep) and once it grew fairly dense, it flowered quite a bit. I made a topic on it... http://www.terraforums.com/forums/sh...ibba-in-flower I lost all of it though when I moved 2 years ago along with most other utrics :-\ good luck!
Edit: I tried some Aldrovandra in that once, and I did have to constantly monitor it and remove U. gibba from completely covering it... I tried to keep one spot clear for them, but ultimately took them out.
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Awesome to hear from the gurus! Thanks folks!