So heres the deal I have bostons up front and stockers in the back. Im buying some better 6x8's soon(hopefully these)

Should I put the new 6x8's in front and move the Bostons to the rear?
Or with the new speakers hopefully creating more bass, put the new ones in back and keep the crisper bostons up front?

 

Move the Boston's to the rear and the new 6x8's up front.

 

I like the clearest sounding speakers up front. I'd try 'em both ways before you solder them in. Those Pioneers look like they would have the bass you may want behind you.