I still haven't been able to decide which system to go with. Could anyone give me some input?

I have a good deal on some Brand New Eggbeater SL's, There are the ATACs and the SPD pedal + clip in.
Pedal that has SPD clip in
Atac Pedals + cleats
Eggbeater SL's

I can't figure out which will be a decent investment as well as a solid clipless system. Could anyone give me their personal input?