tires are as much a personal choice as oil type , stroke or not to stroke, types of plastic and colors to run or not run race fuel...a lot comes down to your preference and conditions of where and what and how you ride..these things you need to figure out to find what is your best tire, and size
I personally like the sizes you have mentioned, and I like holeshot GNCC tires, but hate the rest of the holeshot line up for XC.
I don't like razors I think they are too heavy, but with heavy comes a strong sturdy long lasting tire...
I like light rims (yes that bend) and a light soft tire that wears ..but when a tire is wearing down that means its biting in,
I've had tires that would last forever(relators) super strong and super heavy, but didn't get traction to save my life..
tires are a compromise in what YOU want, just know that a long lasting tire as a rule doesn't have the same traction as one that wears down quicker, and a heavy tire adds rotating mass..so you have to ask yourself what exactly you are looking for in a tire,
because as far as I know the perfect tire doesn't exists, one that is light, gets great traction in all conditions, and lasts a long time, and of course isn't expensive,...lol