In my experience:
eggbeaters < Candy C < Quattros
I have all three. The eggbeaters are way too flimsy (aka - too much float) for track. Your chances for clipping out are much stronger. The Candy's are better and give a more locked-in feel as well as providing for much better power transfer. The difference is quite noticeable.
I'bve been riding Quattros (the road pedal with a Sidi Dominators - MTB shoe) and they provide the best power transfer, a very stable platform and a very locked in feeling (they're the hardest to get out of from all three). If you're serious about getting a very good pedal for road, long distance, power transfer and for riding at the track, get the Quattros. The downside is that I've seen very few stores carry them in the city at least. Out there, there's a performance somewhere I believe, a bike shop close to the Metra (small though) and George Garner is close by too, which I've never been to but might be your best bet.
However, I'm sure one of the roadie shops would probably have the Quattros in the city -- perhaps Higher Gear on Fullerton or Cycle Smithy.