Hefeweizen is fast, at its best while young, simple, cheap, and best of all, serving it cloudy with suspended yeast is not only acceptable but preferred.
If you don't like hef, porter is another really forgiving style.
But like 944 said, a hefe can stand up to less than optimal fermentation temps, it's ready to drink pretty fast, and you won't care if the beer isn't clear. Can't really argue with that.
yeah don't make the mistake of brewing something that needs some extra aging on it. I did that and was chomping at the bit the whole time. This is one of the things i enjoy about homebrewing, deciding what to brew next!