I have also been looking around for a Christian Guild on WoW, EU. Couldn't find one anywhere, so I've set one up.
It's a Horde
Guild on Terokkar called <Stand>, as in Matt 5:15, Mark 4:21, Luke 8:16, Luke 11:33 and Eph 6:14-20
Guild Master is Armyofme (Orc Hunter), though my main is Deadlove (Undead Rogue). I've all my alts in there and we're @ Guild Level 4 currently. Please be aware that I am not restricting access to only Christians, but wanting to make a Christ centred Guild where all are welcome. Through this creating opportunities for people to ask about Christ. This has been on my mind to do for some time and so am now going for it.
If you are a Christian and play WoW, you are most welcome in helping me to build this.
Any questions, please ask, and feel free to contact ingame. Looking forward to hearing from you soon