What type of speaker would sound better?

Whichever ones your ears like best. I prefer horn loaded speakers some do not.

A big part depends on who the designers are. Is the same person designing both speakers? A designer can make a huge difference in speaker performance.

Which sounds better depends largely on synergy and the room the speakers are being used in.

The idea is to match the amp/pre with the speakers. You might be wasting 245 watts of amplifier on speakers that really would sound good with 25 watts or less. 

I had a 30 watt class A amp that far out performed a 200 watt mono blocks especially the bass.

A good idea to decide your listening position.  I would not think in terms of "filling " the room. You don't want a PA system.  Micro details and dynamics are special if you can get there. 

I've heard some 2 way speakers that sounded better than everything else in the same line from the same manufacturer! Power, room, placement all play a part, but unless you're just looking for loudness usually the 2 way with better components ought to win.