This is a resurrection of an Oct 2017 thread, yours is a great answer!I had both reels.
I am going to throw a curve ball in the proceedings.
A 20VISX is a better choice than both reels. Slightly larger and heavier. But -
More line capacity.
Same retrieve rate.
A much better cow reel
Casts better than the Mak same as the 16VISX
I have since sold my Mak and Visx 16 - dont see the need for that size reel
I ended up with a MAK16 because of a lack of availability of the VISX16 at the time.. Fished it with 600yds of 80lb Izor with a 100lb floro top shot. Personal best was a 210lb YFT on the Intrepid. Never felt undergunned but line capacity became a concern when fish made a long run and I still had lines all over mine. Finally cleared the lines and was able to pull and turn fish. Reel cast better than my MAK20's but I have not fished a VISX yet.