Love them or hate them, Alex and Izzie have generated a lot of buzz so far in Season Five.

The couple has been received positively by many Grey's Anatomy fans, but Izzie's previous romance with George attracted a considerable fan base itself.

So we decided to put it to an informal vote. Tell us which you prefer in the survey below ...

Which couple do you like best?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.