seasnake
Conquistador
personally i voted against them because they're entirely luck based; pull the slot machine, find a couple early natural wonders and you win.
Not at all. You need to actively scour the map to get to them first, and you want to plan to site a few cities near them to really rake in the bonuses, which has started more than one war. You have to choose to actively pursue a strategy of finding and then working the natural wonders for it to be effective, so it's less luck and more commitment to a play style.