Wilson Audio Sophia 3 vs Watt Puppy 7

I'm looking for a pair of new speaker and my target is WA Sophia 3 and Watt Puppy 7.  Unfortunately I have no chance listen and compare to them side by side.  Does anybody can tell me what are the biggest difference of sound character between these two speakers?  And which is more easy to drive?  I always guess Watt 7 are more easy to handle because the sensitivity is 93 db but Sophia 7 is 87 db only, but I saw many post that Sophia 3 is more easy to drive, which is correct?  Thanks.