Well, there are a lot of really pretty tilesets available in VX style, but when it comes to nature maps they are so unnatural because everything's square and straight. But it was clear that at some point you'd switch to the VX maps because unless you get your own tilesets designed for every game, the material for XP is quite limited and no one wants games that all look the same.
What I really dislike and can't get used to are the sprites. They are just ugly. I'm playing TBOL yet again now (with Ana and Benito, lol), and as much as I've gotten used to the maps, the sprites are still disturbing for me.
But to be fair, it doesn't really impair the gameplay. It's just like a constant itch in my eyes.
I hope the new battle system will be as cool as the old one because that's one of the BIGGEST advantages of your games!!!