I used to play Ragnarok Online a lot before, and many RPGs. I always like to chose a Knight, Crusader, or any armored warrior. Usually I went by Black Knight or a combination of those. It was always used on most servers. So I opted for Knightmare, which is also used on most servers. So this is how i ended up with Knitemare. Still pretty common, but sometimes i get lucky and manage to be the first one on the servers.
"We all make choices, but in the end, our choices make us" - Andrew Ryan, Bioshock.