Lots of people have different opinions on what best to wear in Runescape, but IMHO I would say that wearing the saradomin robes set with a blue h ween mask and a prayer cape.
rogue
You obtain Costume Points, by successfully completing Random Events which reward you with a Costume. Then you redeem these points at Thessilia, in Varrock.
Many people believe it does help.
The best style of costume would be up to the person wearing the costume.
No, currently, telmomarques is the best player in Runescape.
Crabs218 is the second best runescaper on runescape he is friends with zezmia and i am crabs218 i am the second best runescaper on runescape
what will be the best costume for my bad girl declamation
Get the mime random event, and choose the 'costume point', then travel to varrock and go to the clothing store and use your point and pick which piece of the mime costume you want
Not all at once but once you have had enough of the events you will.
There is no best person in RuneScape. Even if there on the #1 on the Highscores, it doesn't mean there the best. Thanks to NightmareRH for this.
The best runescape player to ever play is zezima and virgilio114 & sk8dude478 they are legends.
The best monster to kill in Runescape would be the King Black Dragon.