WTF is My Gear Score?

#	Class	Name	Guild	Score
1	warrior	Nefi	Wiped	13,444
2	priest	Lisann	Epics	13,294
3	rogue	Fridericus	Schattenspiel	13,293
4	paladin	Elburner		13,165
5	druid	Sakin	Seleção	13,163
6	priest	Callyra	Bis einer heult	13,121
7	druid	Yerodin	Starlight	13,002
8	shaman	Exodus	MyHomeBank	12,948
9	priest	Cailyn	Servatores Lucis	12,882
10	warrior	Salisko	Seleção	12,846
11	druid	Aogmiki	Unlêashed	12,837
12	paladin	Talvon		12,819
13	hunter	Odin	Chaostruppe	12,790
14	druid	Lashing		12,783
15	priest	Steelrose	Ritter der Allianz	12,722
16	paladin	Baronlazar	Private	12,694
17	paladin	Neltharia	Ars Moriendi	12,633
18	rogue	Enedrai	Circle of Rico	12,599
19	mage	Andü	Orden der Macht	12,572
20	priest	Geflato	Jagdgesellschaft	12,569
21	druid	Luinel	Erben von Azeroth	12,532
22	rogue	Franca	Trucidare	12,504
23	death knight	Vyper	from Classic to End	12,474
24	druid	Isarmar	Wiped	12,389
25	druid	Doromanthore	Sphinx	12,312