I have an assortment.
Two road bikes with Speedplay Zero pedals (now owned by Wahoo). These are my favorite system.
A fixed gear bike with Shimano SPD-SL
A fixed gear with plastic toe cages and leather straps
A 3-speed city bike with flat pedals
A single speed with flat pedals
A set of SPD pedals I've occasionally used in the past, currently kept as spares
White Lake road shoes with combination of Boa and velcro strap, Speedplay cleats--my favorite shoes
Black and gray Specialized road shoes with velcro straps, Speedplay cleats
Black and red Fizik road shoes with just a Boa ratchet, SPD-SL cleats
Olive green Giro touring/commuting shoes with laces and SPD cleats--my least favorite.
Sketchers slip-on loafers that I wear for nearly everything, including casual bike rides