I have come up with my conclusion since last night. I cant really say I like one thing more than the other because all together they make up the whole shibang.
Fish: They have personality and also give it some exotic look. The colors of the fish just look amazing!
Inverts: They are interetsing. When you look in the tank and they are just doing their thing and you could watch them for hours. That and lot of them blend in and people are amazed at all the things in the tank that you dont see at first glance.
Corals: give it a live feeling like everything including the rock is live in the tank.
Liverock: Nothing looks better than some rock with purple all over it! So even the rock is pretty!
Sand: This is optional to alot of people but I love white sand! Makes me think im down in the carribean somewhere just chilling when I watch my tank.
So all are needed for a well rounded tank IMO