Final Fantasy XI, it was online and I had a great time playing it for multiple years. There's no tournaments though unfortunately.
the best game is FIFA 2008 football where i play to beat my opponent ,team selection changing players its interesting and can have fun.
As for me I prefer Conquer online ..I have been playing this for almost a year and I am still playing it now when I am not busy
Baldur's gate was the best game that i ever owned. It broke the bar in gameplay and storyline, and i was already introduced to dungeons and dragons and the R.A. Salvatore "Forgotten Realms books" so it was a must.