Five-Ten is a safe bet in non-clipless shoes for platform pedals. Check current reviews for rival brands -- Shimano, Pearl Izumi, etc. -- but reviewers typically consider Five-Ten the standard for others to meet or beat. That said, my usual shoes for platform pedals are Merrell high tops and Adidas low top Daily 2.0 traditional sneaks with stiffer than usual soles, although not quite as stiff as Five-Ten. Love 'em for bike rides.

I use iSSi Thump pedals on one hybrid. Great pedals for around $40. Large platform, very slightly concave and feel great. Can't say I really notice myself missing being clipped in when riding that bike. My cadence on the hybrid is usually around 60-75 rpm so I rarely feel my feet getting ahead of the pedal. The only time I really feel like clipless helps is when spinning 90 rpm or faster, especially on fast downhills.

And if I'm having knee twinges on the road bikes clipped in, switching to the hybrid lets me put my feet wherever it feels most comfortable. It's more than just float. Sometimes I prefer being able to move my feet forward or backward a bit. Can't do that with my Look or Shimano clipless setups.