Michigan Vortex or Quicksilver Diamond 4-bladed prop

[Mike Franke]

I want to replace my 14.5 X 19 3-blade with a 14.5 X 18 4-blade. I'm looking at Michigan Vortex and Quicksilver Diamond. Is one better than the other? Solas Amita has a 14.25 X 19 (no 18 pitch). Its going on a 2003 20' deck boat with a 220hp 4.3. Thanks.