Building Mono Green Commanders

I wanna build a Mono Green Commander deck. My playgroup likes strong decks but they will gang up on me if I bring a cEDH deck. I personally enjoy the politics of 4 way Commander and slamming down some big creatures on the board. I'm currently debating between building Selvala (Green Stompy) and Titania Voice of Gaea (Forest Ramp & Animation). Is there another option I'm overlooking? Deck building tips and card suggestions also welcome! Thanks!