IMO, if GBATemp wanted to make a pwnage Wi-Fi night, it could make it something like a Wi-Fi Olympics. It would have different types of games, for example Fifa,Clubhouse Games, Worms,Mario Kart DS, Tetris, and other online games. Contestants would be grouped, and each group would play all sorts of game genres. And for example, only the 2 with the most points in each group, go to the next level and so on.
Those who are good at certain types of games may not be at others, so it gives a fair chance IMO.
But I'm just wishing... Here's hoping GBATemp makes something like this a reality
I, for one, would not enter any competition with FIFA in it, as I have a strong dislike of sports games. I'm sure many other people feel the same way about other games, for example they may be put off MKDS because of snakers.
Yes, you have these problems with a single game as well, but when they're all together it puts more and more people off participating.
I think sticking to one game is better, unless anyone has a solution to the problems I have just mentioned.