Hi! and welcome to Warmane jcksprrw! Icecrown is where we are all at, its x7 exp. Blackrock is all pvp and if you want a more blizz-like experience, go Lordaeron.
About your question, well, I have to tell you that Warmane does not currrently support migrating or transfering your character from other private servers or from retail.
As part of the Warmane community we are always greatful to have new players in a server we all love. Your English is just fine. Enjoy your stay in Warmane ;D
I'm very happy to see you guys beeing pretty active in communicating with your players and even welcoming everyone! :)
I now choosed to play a fmage on blackrock because its a hell of a fun and competition, im astonished what you created out of the old AT-Server and pretty happy to be here.
I was thinking to start on Icecrown simultaneously another char, but as i said in my first post Im sad to waste my 3000 hours played on frostmourne.
You said "Warmane does not currrently support migrating or transfering your character from other private servers" - it seems like there could be a chance for this in the future - is the server aiming for something like this?
I even could go ahead and ask the frostmourne team if they would support something like this - getting my old characters to a active realm like this one would mean a lot to me.