Only reason I'd say to avoid Mateus, ignoring the bait reasons, is because their economy is a touch messed from what I've been hearing. Lots of omni-crafters jumped ship to go there. However that's a third hand account, I haven't logged into my Mateus alt to check if it holds any water or not. Otherwise I've heard pretty good things about Faerie aside from one particular individual; and I'll always have a small space in my heart for Gilgamesh due to starting there and the newbie guild I joined being absolutely what sold me on this game. Ultimately though it depends on what you want to do. Some servers have better raid communities than others, with others being better for crafters, etc etc etc.