If it has to be only 5 things then:
- World has to be open and interesting.
- Freedom you must be able to do anything normal person can in that world (swim and climb. No invisible walls).
- Interesting races that look apart of eachothers (I am so bored to see 8 different colored humans with names like "orcs, trolls" etc).
- Free combat, lots of skills and talents to chose from (No just 4-6 skills and no just few talent choses. But also no talents like "increases dmg of (??) by 1/5%).
- No flying or BGs. 2 factions. Focus on their fighting and alot wpvp situations and all pvp rewards etc you can get from wpvp only. Ganking protection for low levels (target is grey = you lose honor and fame that does not benefit you in any way). Game does not have pve servers so others don't have to listen pvers whining about getting ganked. They can just leave the game since it's not made for them.
^ Pretty much Arcehage if it would not been suchs a shitty pay to win bot farmer simulator :/