Which stat leveling system do you prefer in RPGs and similar games?

[Brawndo]

I do actually like Bethesdas system in Eldar scrolls. Your "tag" skills level up faster (relative to same use), whereas your minor skills still raise but at a much slower rate all based on use. It works for me

Hmm, I've never played Eldar Scrolls, but that sounds like a good hybrid from the description. They should implement this in more games