Which Of These Speakers Are Better?

[No Crust Racing]

Buying speakers for the missus car, which needs either 5x7s or 6x8s to fit in the factory holes.

I bought these - http://www.cadencesound.com/cs3-57/

And they'e on the way in the mail.

But then I found these locally http://www.cadencesound.com/xs682/

I note the ones I bought have higher peak and RMS power specs, and are 3 way so may have arguably clearer sound distinction between ranges, but the 6x8s I'm assumign would have better bass response being a bigger speaker physically?

Thoughts? I'm tossing up if I should sell the ones I bought when they get here and go buy the 6x8s.

The 6x8s will cost me $10 more than the one's I bought - on the condition I can get what I paid for the first ones.

For reference I've bought 2 pairs of speakers to replace all the factory ones.

[niZmO_Man]

Assuming no sub, xs682 as it has a lower frequency response (60Hz vs 84Hz). Won't really know until you hear them both.

[No Crust Racing]

I might just buy those anyway as I think I may have got the sizes wrong, Chris on here (and a youtube clip) is telling me they are 6x8 not 5x7, I know they use the same mount but if I can get the bigger one as a direct fit then that's nice.