I have been havng fun back in WoW lately, it is a finely crafted game that delivers on so many levels. It may not be lighting up my brain with new thoughts as Portal, Crysis and Sims2 did only a few short months ago - but it is great company.
Now that we are on the Aussie server in a big guild (Flat Roos) it is another level of experience for us. Our Mojo characters are making their mark already - good fun.
I dont know much about Final Fantasy XI, as an MMORPG I am not sure what it has to offer over what Blizzard is offering. The Final Fantasy XI site (all flash) is nifty though.