I and my reals are looking for a good high populated PVP server(Not with a queue) with a good 10 man raid population, if any suggestions could be made that would be great.
Herald of the Titans
Well Outland is amazing Realm, but sadly bussiest of EU, and has a Que everyday.
Try to look at Realmlist when it's night (20.00 - 24.00) Those times the realms are most busy at EU.
And then take look which Realm isn't that full and can forfill with your requirements.
EU ~ Outland
You could take a look here http://wow.realmpop.com/eu.html
I will say anything about how accurate it is though.