GeoKrpan

I've used Time ATAC pedals and Shimano SPD and I prefer SPD. As I said, it's the feeling of clipping in and out that I don't like about the ATAC. It is an indistinct, unprecise feeling with the ATACs.
You may not like SPDs but they are the most popular by far. The newest version is better in terms of mud clearing. I don't ride in mud enough to make the ATACs worthwhile for me. If anything, I find the SPDs easier to get out of because you don't have to turn your foot as much and, as I said, the entry/release tension is adjustable unlike the ATACs or Eggbeaters.
The criticism I've heard of the Eggbeater is about it's shape. All four sides are the same size and are very narrow from front to back. If you miss clipping in the pedal rolls on the bottom of the shoe. Or, if you're tring to pedal without being clipped in the foot rolls off. I know people who have gone back to SPDs for this reason.