polk rtia9 vs paradigm studio 100

I am trying to decide on a new pair of speakers. I have a carver c-1 preamp with 2 carver m1.0t amps set mono. I use this for 2 channel music only. I was hoping for suggestions on the following speakers. Polk rtia9, paradigm studio v4 or 5; or even studio 60. Or any other suggestion in that price range. Thanks