>NGS
I prefer this game over black simply because it adds more action and less puzzles. Just more encounters, more enemies, more ambushes, more bosses. Going back to black and some chapters just feel way worse than in sigma. The airship feels empty in black, also weird that tairon under alert doesn't have a boss fight in black, path to zarkhan is also way worse in black, i also prefer the pyramid section being cut in sigma, and also a bunch of platforming removed like the fire door section just before the dragon boss fight.
I always thought it was weird that the horse guys appear on only one area in the entire game, the motorcycle guys as a replacement in vigoor felt like an appropriate addition.
Dual swords are also nice addition, bow controls feel weird but in exchange we get aerial bows so I can't complain. Fire wheels aren't useless piece of shit anymore which is also a plus. Also survival mode is a plus.
I do agree though that the rachel chapters get stale after a while. It was a nice change of pace on my first run but it gets old fast. On my MN run I pretty much just ran all the way to the end of her chapters.
Some costumes getting removed is also really stupid, like why even take those off? The red scarf was hella cool. It's also weird that the game won't let you play as fiend ryu even though the model is already there.
Also the camera still fucking suck, but they let me invert the controls now so I can actually use it like a normal human.
For the cheat items like the enhancements and grip of murder, I kinda don't care to be honest, I even used them but I get if some people don't like it.
Overall I understand why some people would prefer black, but I personally think sigma is the better experience and the most "complete" game in the entire series. That's why I rank it at the top.