Old school vs. new school - ci vs. gg
Craycort vs. Char Boil - I don't think a steak can tell the difference brands of CI. Differences in appearance, longevity, thickness will be minor but these minor differences is what you are looking for. The numbers of people that have both to compare will be small, so you'll have to ask yourself whats more important to you. Cost, appearance, name recognition, etc.
Old vs new school - I have been looking at the Grill Grates and have been tempted. I want to place the grill grates directly over the fire and not on top of another grate. Grilling over non-GrillGrates has been happening for a long long time. Even if it's the best way to grill, it will take time to convert old-timers to this new innovation.