Whether you pick your amplification or speakers first, you have to select the rest of the chain based on that. I wouldn't choose Bryston amps for my Paradigms because I don't care for somewhat cold, analytical result. I prefer my Marantz with those speakers. It balances the detailed, somewhat forward presentation with a more musical, "sweeter" presentation. My point being know your preferences and assemble your rig for synergy based on that. Declaring a particular speaker bad is nonsense at this level, and it's asinine. Any blanket statement in this regard does nothing but demonstrate profound ignorance of the subject. My $ .02.
Paradigm persona vs. Monitor audio Platinum
Just listen to the paradigm persona 7h.the monitor audio Platinum 300 generation two are so much more three-dimensional and open it's not even funny the paradigm sounded very two-dimensional compared to the monitors that MPD Tweeter puts the beryllium Tweeter to shame.