Whats The Best Floating Plant?

I have tried a few different plants.
I currently have Limnobium laevigatum in my forest tank. It doesn't appreciate the condensation dripping on to it (it dies off), so I also have stack box (no lid) where it goes to recover. I have also had experience with salvinia natans, and had the same problem. I think a lot of aquascapers have open top tanks, so have to deal with evaporation instead of condensation.
Plants such as Ceratopteris thalicroides, and Hydrocotyle leucocephalia are also grown sumberged, so don't have any problems with condensation. The leaves of the Hydrocotyle even look like miniature lily pads.
I've not tried Riccia fluitans.

I really liked floating red root (Phyllanthus fluitans). It took a little while to settle but looked stunning after a few weeks.