While I understand that a lot of people like speedplay, I'm here to be the Devil's advocate.

In my experience as a fitter, speedplay cleats are much harder to adjust and when the cleats wear out they are much more expensive to replace. Having said that, the cleats do not need replacing as frequently as other types of cleats.

Candy eggbeaters are very easy to get into and are multisided, they do require regular maintenance. Eggbeaters get a bad rap because when they fail the pedal comes right off, but if you maintain them, they work just fine for as long as you want them to. Cleats are cheap and have loads of adjustment.

SPDs are 2 sided, cleats have loads of adjustment and are cheap to replace. Many models of Shimano SPD pedals need regular mantenance like the Eggbeaters. Interestingly enough, the XTR pedals seem to be most prone to failure if you don't maintain them. I use Shimano SPD for my mtn bikes and my commuter.

I personally use Look style pedals and cleats on my road bike. I like them for the larger platform, weight, cheap cleats and a lot of adjustment. They are one sided but it certainly didn't take long for me to get used to that.

Just in case you wanted input about other options.