Heck, Novak is half the problem. Their oddball sight cuts caught on which I guess was kind of OK, but then off brand copies just enough different not to have to license the design got common.
My FLG prefers Heinie, says the rear is easier to install - and one custom gunsmith makes it easier by removing the hangy down part and a famous custom gunsmith makes his own of the same simplified profile but nicer, don'cha know.
And he thinks the Heinie (also STI) .300" dovetail looks more in proportion out front.
Me?
I have low Bomars, an old low Micro, and an LPA that came on guns. I have not had an oddball rear sight cut made; I have King and Novak rear sights that fit the GI dovetail. I have had cross dovetail fronts put on for the wider selection of blades, though.
I watched FLG struggling with the ChiCom guns. People think that low machinability means it must be stronger and better. The tough steel selection seems to have stopped short of the barrels, I have read several accounts of beat up locking lugs. Tuner put Imbel/Springfield barrels in them.