Years ago I was spending money trying all different types of blades. It depends on the type of grass you cut, what kind of ground speed you can travel, what height you cut at, what weather conditions are, and most important which one suites you. Reading owners manual, lookin at the suggested options helps.
To sum it up, its really hard to beat what the factory offers. I prefer the high lift blades for discharge and clean cut. Low lift are for sandy type conditions, super high lifts are more of a bagger type set up(they can suck some power and really use some fuel). Mulching blades only mulch with mulching kits. With saying that, I've never had a gator blade that made me say "wow" would you look at that, these things are awesome! In fact I didn't like them because they made the machine feel rougher when the blades were on. I could never get them to balance when sharpening. Never tried the g6's . This is just my experience.
I've owned Great Danes, Exmark, Dixie Chopper and Scags. Great Danes I used high lift(rotary blade name), Exmark found the factory high lift suited me, Dixie Chopper liked medium lift(read up on their x blades, 160 dollars for 6) and the Scags like what comes on it when I bought them(my two did not do as well on aftermarket). I side discharged the whole time. I do like the marbin coating for durability.
It really takes some time and testing to find the blades your machine performs the best with. You will likely find a set that does better in a heavy dew vs hot and dry or mowing once a week or 2 weeks. The regular high lifts worked the best for me. Hope this helps.
