Which Speakers to go with Sub?

dnoyeB
dnoyeB Posts: 114
edited February 2011 in Speakers
So I have a subwoofer. So I want some mains that don't duplicate what my sub already does. Looking at the RTi A line

RTi A9 - 3x8" Crossover < 120Hz
RTi A7 - 2x7" Crossover < 125Hz
RTi A5 - 2x6 1/2" mid/woofer
RTi A3 - 1x6 1/2" mid/woofer
RTi A1 - 1x5 1/4" mid/woofer

From this analysis, it looks like the A9s and the A7s are out since they have their own speakers for very low frequencies. The question is then, should I go with the A5s, A3s, or A1s.

Which of these 3 remaining speakers do you think will produce the best midrange frequencies to match with the subwoofer?
Music
LR: Polk Monitor 70 (willing to sell if interested)
C: Cerwin Vega E-75C
Sub: HSU VTF-2 MK3
AVR: Sony STR-DE835
AMP:

HT
5.1: Paradigm CT110
AVR: Integra DTR-4.6

WTB: RTiA9 or RTi12