Can we get a sticky on Fighter's Combat Superiority, Combat Challenge?

[Stalker0]

Once again, a person posted questions about the difference. Its probably one of the most common questions I've seen so far. Can we just get a sticky to help people out?

 

[Gladius Legis]

Once again, a person posted questions about the difference. Its probably one of the most common questions I've seen so far. Can we just get a sticky to help people out?

I think we should have a stickied FAQ 4e thread about mechanics in general.