The Lotus Eater, because I agree with i aint play this that this is one of the finest Opeth songs ever. The Nintendo bit is awesome, and the parts where Mike growls remind me so much of April Ethereal. Axe's drumming is so excellent, and of course and the guitar work is awesome as well.
While Porcelain Heart does have its moment and is overall a very good tune, imo in no way is it as impressive as The Lotus Eater. Oh, and Axe's drum fill is cool.