I joined TOOSG (The Oficial Obelisk Skirmish Guild) a few months ago as their main focus is winning skirmishes. We now have a 10/10 winning streak going! At the time I joined I needed all the avatars so I'm very happy with the success we have seen :). For more info or any questions you may have about our guild you can visit our board here http://www.neopets.com/neoboards/topic.phtml?topic=159571242&next=1 I'm sure you can find helpful people there! Good luck!
I stay with TOOSG because I love the community. The members are helpful and many are long time players, happy to share their knowledge of not only battledome/skirmishes but other Neo activities as well.