The monsters themselves plus there is balance with the weapons and finesse to the combat system. 

In Soul Sacrifice, the biggest issue in my opinion is balancing.  If you don't have weapons of the correct element, it'll take several times as many attacks to kill a monster.  In Ragnarok Odyssey you have one combo and several attacks tied to how many hits you do with the combo.  Some of your most damaging attacks may come from one combo but there's no way to get that amount of attacks in and the combo finished before an enemy attack hits, so most of the additional attacks in the game are useless when you don't have the time to use them.  The other problem are the weapon types are very unbalanced.  Some weapons are clearly more damage dealing than others.  The long sword is good at area of effect, but it's weak when it comes to damage dealing, so even something like the mace weapons are more damaging and can heal.  An issue with all games, a much bigger issue with Ragnarok Odyssey is you'll either do a mission you're required to kill non boss monsters to complete the mission or in Ragnarok Odyssey go to room after room, only for the door to be locked forcing you to kill all these enemies before allowing you to progress, and when you do the same missions over and over with a different boss, it gets extremely boring because of the massive amount of repetition.

It was the first one to get popular doing it, but what other Monster Hunter like games were out prior to its popularity?  Exactly.  It's the massive amount of popularity it received that's the reason why we're seeing these clones in the first place.  It wasn't until God Eater that we saw the first Monster Hunter clone and that was in 2010.  Monster Hunter has been around since 2004, but it didn't start to gain a massive amount of popularity until Monster Hunter for PSP, and the massive amount of popularity is exclusive to Japan.  Outside of Japan it's fairly niche.

People might say Phantasy Star Online, Universe, or Phantasy Star Portable, but those aren't anything like Monster Hunter.  Those are more like console versions of Diablo games.  Less like Monster Hunter or any of its clones.

I'm sorry but the combat system is very similar. For example, certain monsters take way more damage from exposive and hammer weapons, and some take more damage from slicing weapons. That's the same as in Monhun. You cannot beat certain monsters within the timeframe without using the right weapons..,.or an extremely powerful weapon of a different type. I would do perfect runs against some monsters and just could not beat them. Then I switched to a hammer of the same tier, and ruined them. It's very similar.

And the part about endless repetition? MonHun IS endless repetition. Moreso than the other games. The difference is that you're rewarded far better in MonHun, and it makes doing the runs worth it.

I don't know how you can think that the crafting is just the same as whatever the other games offer. That's your opinion though, so whatever.

PSP was certainly made to mimic MH. Not so much Universe, but that was certainly the reason why PSP was created (and I don't think they're that dissimilar outside of the fact that Portable is faster and is actually fun to play by yourself). 

I'll make a bet, which probably won't ever have a chance to pan out, but still....
If ever a game comes out that has monster hunting AND crafting similar to monhun, it will outsell every other clone. Guaranteed.

People keep saying that Battlefield does everything better than COD, while BF has done better, it still gets smacked on by COD. Won't happen.

It's a brand that people gravitate to and will sell regardless of platform. It's just as big as Pokemon.

You asked why I thought Monster Hunter was better.  Why not go look at the other posts rather than making me repeat myself.  I mentioned that all the games are endless repetition but Ragnarok Odyssey is even more so.  That includes Monster Hunter.  Several of my posts stated that I thought Monster Hunter was better but mentioned that I didn't like it and why.  You need to start paying more attention.  I've had to repeat things just because you overlooked them.  Reminds me of your lengthy post about my Persona review that I replied and pointed out each paragraph which stated what you said I happened not to include.

I'm not saying it would outsell monhun. I'm saying it would outsell the clones. The worst news I ever heard was that soul sacrifice didn't have crafting. Killed all my anticipation for the game.

Anyway, it's more like I'm saying "I bet if there was a game that was much more similar to cod, but had some cool differences, it would outsell all the other war games", and then battlefield comes out.

Soul Sacrifice has spell crafting, which is really the same because you don't have weapons. 

The only problem is that those clones (which are really new IPs or spinoffs of existing) have sold pretty damn well and it'll take a lot for a new one to sell 800-900k which is what you're suggesting.

http://www.vgchartz.com/gamedb/?name=toukiden

Looks like you lost your bet.