The best replacement for aoe is iscsi.

The best alternatives to aoe are rated as following:
★★★★★  iscsi
★★  aom
★★  civ
★  fcoe
★  ron
  empire earth
  rise of nations
  single target
  aoe

Your alternative for aoe is not listed? Suggest!
Speaking about aoe, one probably shouldn't forget about hamachi.

Other search terms related to aoe and their ratings are:
★★★★★ hamachi
You have in mind a companion for aoe and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of aoe in all years. Click on graph for more.
aoe
iscsi
aom