When a girl advertises as VIP what is that, most on Eros arent extra pretty and most have bad reviews.. doses it mean anything or just advertising

They also pay extra to be in the other categories (example "Super Busty").  

VIP means the same thing on Eros as it does in the VIP room in  a strip club. You PAID to be there. ANY scumbag can get in.  

Generally, VIP escorts start at the $450 per hour mark and go higher.  I won't comment on quality, but generally VIP escorts on Eros have more glam shots and seek to market themselves to high-rollers.  Lots of visiting ladies in the VIP section too.