Weird.
MH has a whole eco-system (which I've not seen in any of the clones) and logic to the world, as well as being incredibly deep. Most MH clones have very little going on in the environment and aren't that deep.
But it is surprising that someone would like all the clones and hate their inspiration. One or two of the clones I could see, but all seems odd.
Well thats it really. There inspirition seems more like it has come from PSO than MH. RO definitely so. GeB a balance of the 2.
This looks closer to MH though.
There are things I love and hate about MH. The eco system is really just a bunch of monsters that are no threat but are a pain when fighting a boss. Just something to kill before you get back to the big monster. Its gathering stuff is good though but only because you also have the farm so that you dont have to to gathering toooo much.
However monster hunter is a very slow game. Its "clones" tend to be much faster (both pacing and combat wise). This is a big thing and makes the games feel very different. I can understand people preferring either to be honest.
The thing that makes MH seem really slow as a game is that it basically goes like this.
look at missions.
Find out monster to kill
Google monster to know its weakness because the game sure as shit isn't going to tell you
Choose appropriate weapon
Learn patterns and when to attack and prob kill it in about 40 mins (failing that equip hammer + hit head)
If run out of time get a better weapon.
If you need a better weapon / armour this tends to involve going and killing the same monster over and over again.
This whole process can lead to taking several hours to do one new mission. For some people this is several days.
Again I can understand people who love this but a lot of the clones don't require this at all.
RO - you work your way throughout the missions. Grinding the same bosses only really happens at the end of the game when you are trying to collect cards / better weapons.
GeB - I didnt have to grind hardly anything at all (a few things but mainly to find the odd item). Its item combine system minimized that. Still gave me 75 hours.
How this game does it I don't know. If it has gameplay closer to MH without the need to grind the same monster over and over and over then I would consider that a good thing and an improvement over the MH series.
But I know very little apart from that this games combat seems closer to MH than GeB / RO and that its environment is in sections like MH and RO.