Is claim wars really a sign of skill and achievement? More free time to sit around waiting for a pop, utilizing some sort of third party program, or having a better ping does not prove that you are better than anyone else, and if you try to say that you're better at something because you can claim better, all that does is make you look like a conceited jerk in my eyes.
In my opinion, true signs of skill is being able to coordinate your group to accomplish multiple tasks at the same time to achieve an overall goal. Whether this is grouping up on a daily basis to grind levels so everyone can have level 50, coordinating gatherers and crafters to efficiently produce gear, or figuring out a better strategy to beat a NM, it doesn't matter. What matters is that you and your friends have decided on a target goal, and have managed to reach it as a group. Extra kudos if there are little or no information on this achievement you decided to go after, and you are the ones breaking new grounds in strategy.