[MacLoggerContest] QRZ Online or HamCall Online?

[John May]

I'm trying out QRZ Online subscription service for the first time.  
There seems to be a large number of "Not Founds" returned from QRZ.  I 
do like the QSL cards displayed in MLDX.  I have a few days left on my 
trial period with QRZ.

My question is:

Which subscription service is better?  QRZ Online or HamCall Online?  
What's the differences?

Thanks, John - K6MAY.