For some reason, World Series on the PC is a completely different game from the console versions, with worse artificial intelligence, a completely different (and in some ways worse) interface, next to no character customization options, and no online play.
This is a lousy simulation of the televised version. It looks terrible with its blocky graphics and herky jerky animation. The poker gameplay is about as average as you can get. There are better, more realistic poker games available on the net for free.