Contour Enthusiasts Group Archives Forums Modifications Audio New 3way and 4way speakers here, which in front?

OK. I got my new speakers today from eBay. Two are 3-way (Pioneer TS-A687OR) and two are 4-way (Pioneer TS-A688OR).

Then it hit me. Which would be better in front, and which would be better in the back? The 4-way look like they would provide better highs, so I was thinking front with them. They are rated at 240Watts (max) and the 3-way speakers are 220Watts (max) if that makes any difference.

Thoughts? Eventually I might throw a sub in, but for now, I am just working through getting the non-factory speakers, and the new head-unit installed (waiting on the amp bypass cable for that)...