gistfile1.cs

// step 1: find index of largest value
// If there is a tie, the last of the tied worlds will be chosen
World chosenWorld;
int maxVotes = int.MinValue, i = 0;
foreach (int votes in voteList) {
    if ((chosenWorld == null) || (votes > maxVotes)) {
        maxVotes = votes;
        chosenWorld = worldList[i];
    }
    i++;
}

// step 2: print the results, if you want
Server.Message("World {0} won with {1} votes!", chosenWorld.Name, maxVotes);

// step 3: there is no step 3, you're done
return chosenWorld;