A good champ does the following
- Raise the notoriety of the belt
- provide quality matches
- provide quality promos
- provide quality entertainment
- make the other roster look good in their matches (Something Cena did with the US open challange)
- have compelling feuds
- Show a believable dominance over people she has beat.
Nikki has done NONE of that.
Just because she works out more now and she learned how to throw a stiff elbow does not make her a wrestler.
Yes part of it is the presentation and Vince but much of it is on her.