I asked a question a while back which didn't get answered, so I'll try again.
I have some trouble with SPDs in the winter because ice gets frozen into the cleats and I can't clip in until I bust it all out. It sometimes happens in the summer with clay too.

Are eggbeaters more resistant to gunk in the cleats than SPD?

I can get in/out of SPD without even thinking about it, but the clogging up bugs me sometimes.