Looking to roll on a Wrath realm, but not sure which I want. Yes, I know the rates are different, but that doesn't matter (much). What I'm wondering is, which will have the higher, and more stable population, in your opinion, Lordaeron, or the merged Deathwing and Ragnaros realm (Rag-wing? Death-nos?)
It depends also from your Time Zone, during the main EU hours Lordaeron>Deathwing+Ragnaros, right now instead (2 a.m. server time):
Lordaeron= 3500
D+R= 3800
But at the moment it is hard to predict the future Lordaeron population once it has reached the end-game phase.
In your shoes I would not worry about the population anyway, in both case you will have a really high poplation.
Also what do you prefer, PvE? then what matter the most is where to find the best Guild and most friendly people ( I guess, I have never done PvE)