Which integrated amp would you pick?

I haven't learned them on anywhere near the same type of equipment to compare. Try them both to see what's better.

I purchased the Music Fidelity M6si and have paired with the Dynaudio Special 25,s connected via Tara labs The One speaker cable. The M6si is being fed thru a MacBook Pro with YBS USB cable with excellent results. Im a tweaker and have installed the SR Black fuses in the M6si ( 4 total ) which is a substantial upgrade like all the postings on the SR Black Fuses states I agree they are amazing. My house runs on an independent transformer from the main lines with fantastic sonic results on the M6si. My next tweak will be installing 10 ByBee filters, 6 off the secondary windings and 4 off the output signal to the speaker terminals.

I agree with the post above that the internal DAC is better then some are giving it credit for.

The M6si might not be the most revealing integrated out their but give it the proper set up and clean power and a few tweaks and it will surprise you on how good it is.

I have not listened to the Parasound, other choices in consideration were ,

Music Fidelity NV 800
Jeff Rowland
MBL
Vitus 
Pass Labs 60 & 150
DartZeel

At the end I chose the M6si for the simplicity of the one box solutions and didn't want to get caught up and the constant upgrade path that this hobby leads into. 

Neither, i'd go for a Vitus RI-100 ;)

melbguy1, only one potential problem with your recommendation as compared to the MF M6si. It's four times the MSRP. So instead of spending $3,000 by all means have it your way and spend $12,000. :) 

There are lots of class D enemies here for sure.
I'm not. I haven't heard Parasound Halo integrated, but I like Bel Canto class D integrated amp S300i