PvP stands for the advanced option, Player versus Player. You can choose to
make a PvP if you feel the need to compete with other people around the world.
PvP is not recommended for people who have just started Guild Wars.

You can choose on whatever Profession and second Profession you want in the
game. You can make your own character or you can choose one of the templates
Guild Wars has to offer. Once you make your character, Guild Wars gives you
three choices on where to PvP:

Arena
Tournament
Guild

Arena pits you into the Competition Arena in Lion’s Arch and is the most basic
of PvP places. Tournament is recommended only for experienced players and
will allow you to win your country’s Favor. Guild will allow you to compete in
GvG, or Guild versus Guild Battles.

EXAMPLE: What’s the best character to kill people in PvP with?