New system inquiry: No rear fill? 5 channel bridge or 4 channel bridge

[aodioxp]

Hi , I am deciding which sound system to put in my 2g eclipse.
with the same budget, I can go with JBL p660c front+ GTO 928 rear + kicker 700.5 5 channel amp.
because some say the rear speakers just mess up the imaging?
Or i can go wth JBL ms-62c front + no rear + rockford fosgate R400-4D bridged for sub which may save money for headunit and sub.
Sub-wise probably go with JL 10w1v2 because of the shallow mount feature.
Just want clear sound, not too loud not too punching. Rarely have rear passengers so I really do not need the rear speakers, right?

Please tell me what you think about these two type of systems, any suggestions~~Thanks~