This is my first tabletop game, and I have had a few ideas. I'm going to make it super simple, with only three stats: people skills, fighting skills, and traversing skills. Each of these have three attributes: base stat (determines dice to roll), modifier (how much to add or subtract from dice roll) and resistance (how much to subtract from an opposing dice roll).
Talking to people, moving over tough terrain, and attacking an enemy will all work on the same system.
There's a bunch of other stuff I've thought of and started writing down too :)