You have to remember the more float you have the harder it is to get out of the pedal. I personally like Look pedals (on all my bikes) I use the black cleats that are (supposedly) 0 degrees of float. In reality there is still some play in them. I tryed the red cleats with 6 degrees of float and had a heck of a time escaping out of them. If you really need that much float for whatever reason. poor form or mechanics ,off roading, physical limititations, etc go with time or speedplay. Looks are also a good choice.. but not the best.
If you only need a small amount of float then Ide definitely choose a Look pp396 or A5.1.. Look makes so many different pedals you really need to try before you buy.