Personally I'd go for
/
(both seem pretty good)
(raw damage means he'll kill you before you can heal anyway, especially since he's trying to kill you in a single combo most of the time)
or
(both of these boots/sustain item combos bring you to 40% CDR, have comparable AD, and similar sustain)
IE and Essence reaver are core on him because you want those fat crits and constant ability spam. The other crit item is probably just whatever the situation needs most (AoE wave clear, AoE burst, Range, or Dueling). LDR seems to be better than mortal reminder in almost any situation except when facing a super sustain champ like Mundo, Swain, or Volibear. The boot and sustain item combos both offer capped CDR, but I'm not sure which would offer better sustain. Death's dance has less straight healing but applies to more of his damage output, BT offers a shield and better lifesteal, but in combo with the boots may actually offer less AD.