Whats this server(s) about? read on.... (help)

Thanks for clicking, im new to warmane but not new to private servers, I use to play one when cata was out, Im just curious about a few things ive seen mentioned.

1) which server has the most active arena/bg? Idm which xpac... whats your opinion.
2) do the servers balance the economy every now and then? I headed something about it, and if so are all servers this way.
3) Im mostly looking for fun pvp and pvp grind, i dont fancy the x7 realm bc wait times
4) is there anything I should know about the servers that is obvious? anything at all?

comment below and thanks for reading

(also everytime i log my video settings are reset and the wotlk cinematic plays... can i fix this?)

1) Icecrown most likely, as its the most popular realm
2) If the economy gets to bad, they'll do a gold squish, they give a few month warning about it.
3)then donate once an you can skip queu forever or play on a less popular realm
4) in relation to your problem with swettings, move your wow flder to any other foled, then right click and untick read only.