Honestly, LOQOO is probably my favourite out of the three, mostly because the secondary characters (aka not Opala/Farah/Osira) actually have a presence, a shame that some of them seems to be hated by the dev (especially Laquadia)
The story itself is ok too, even if there's weak points here and there
The problem of LOQOO really resides in the "side content"
It's like the developer wants to branch out the game in many different ways, but in doing so, never makes any progress
Story-wise, a really good example is the "future world" thing, there's a beginning, but it stops before it actually gets somewhere
If, for example, the current story of the future world stopped after the tower, you would actually know what the story there will be about (the protagonist's objective here, for example), which would create hype about what will happen after
Gameplay-wise, well, a lot of people are already talking about it here, but the many mini-games that gets added despite being underwhelming
One or two great mini-games is more than enough, you don't need 15 different mini-games just because it can exist
Also, I think it would've been better to actually make some NG+ stuff to do, even if the game is not complete yet, to make it look more complete instead of being kinda empty everywhere
For example, being able to craft all the craftable outfits if you NG+ multiple times would be nice and wouldn't be much of a problem since they have to release them at some point anyway (even if they should give outfits with quests instead imo)
The RPG Maker XP getting very old doesn't help either, but all LOQO games are in XP so there's that
But if you're like me and tend to sneak a peek inside the game files to see how the game is actually made, you will realise the ultimate problem of the game : It's a huge mess, especially in the variables and switches part
Those kind of stuff aren't a big of a deal by themselves, but it does tell a story, and I wouldn't be surprised if the development progress gets hindered in some way because of how it would be hard to find a specific variable