Too Many Choices

I love customization, or rather the idea of it. Especially in a fighting game like Tekken, it is awesome to really be able to make a character your own. I've seen some customizations that make it to where you can't even tell which character they are until they start to attack. To be able to change your character however you see fit, make your own characters as individual as you want, it's a freedom I'd like to enjoy. But I can't. My problems come from the balance of it all. There are three parts to the equation and any part which is too heavy or overwhelming and it falls apart for me.

First the learning curve of the system. Depending on what game it is, there's always some sort of process in which things are organized. There are menus and interaction. I'm really picky when it comes to how things should be controlled.