<font color='#000000'>Pual,
I don't have experience with either Paradigm or Axiom so I can only provide limited opinions. First, it seems to me that you prefer floor stand mains which may not be the best choice for HT since you will use subwoofer all the time for LFE and only >90Hz to the mains. IMHO, standmount monitors mated with sub are better for HT in terms of performance/price ratio. Secondly, based on reviews here on Audioholics, Axiom scored much higher than more expensive Paradigm. So, if possible, you probably want to audition Axiom before making decision.
Gene is reviewing Dynaudio Audience 52 speakers and you may want to wait for the outcome since they definitely worth your consideration. Dynaudio is on a whole different level over both brands mentioned here. You can use Dyns for main and center while other brands for surround and sub to lower the total cost.
Abe</font>