I went with the Shimano Ultegra SPD's after much research and discussion with my LBS folks. I am very happy with my choice, I have a lot of confidence in them, and they are VERY easy to clip out of, which was important to me.
However, I am not writing to give you a specific recommendation, rather, I would like to suggest that you do something that benefited me greatly as I made the transition to clipless:
Mount your pedals and cleats, and then mount your bike to a trainer. I spent 3 consecutive nights on the trainer, about 1/2 hour a night, practicing cleating and uncleating, and making slight fore/aft cleat-to-shoe adjustments. The second night, I "got it", and my confidence increased exponentially. After the 3rd night, I felt really eager to get out on the street.
So far so good, no wipe-outs yet. I always think ahead about unclipping before stopping, but practicing on the trainer for those 3 sessions helped me immeasurably, and I strongly recommend the practice to anyone who looks to make an easy and safe transition to clipless pedals.

Good tip, Ducrider. As someone who has been riding clipless since approx 1986 I have forgotten it might take a little time to get used to them.

Putting the bike on a trainer for something new, or tweaking a fit, etc. is a good idea.