If you need evidence that this is a good server take me for example, been here for nearly 2 yrs (start my third in november), I've played for a while in others, but still always end up back here XD.
As far as WoE goes, I'm really torn between my first Guild, Behemoth, and a guild I've been watching from the sidelines Severe Tier Damage. Both are pretty good =P. Of course theres other WoE guilds who are good too XD.