Haven't been playing cRPG enough to want to draft/organize a team, but I will bullshit with pro america propaganda and tout my eu cav tourney championship at any opportunity.
Don't kid yourself about strat level tactics either. This is very dependent on individual skill and a capacity to support whoever is next to you fighting, basically "battle server awareness." You aren't gonna roll over a team of level 34 pro nord/byzantine 2handers by "cav flank left in v wing formation ~~~" when its like 8 vs 8 arena fighting or whatever the rules are.
If I don't fight in it I'll gladly watch though, "competitive" warband play is pretty funny. Good luck to whoever decides to organize this shit (organizing crpg players is terrible)
If you want to see how these tourneys go, this is a hilarious video of the former EU clan Risen raping like 6 EU teams in a row to win some tournament (set to terrible music)
http://www.youtube.com/watch?v=c3_Xxps8vM4 (notice how every clan tries to retreat, shield wall, skirmish, ranged, etc and Risen are just a bunch of 2 handers who charge in, rape the flanks/envelope and kill everyone everytime, it owns)