Wowowo, i need to pay a fidelity token to enter the arena :/ you dont?
Brotherhood of Blood arena doesn't require anything to enter a duel.
I do prefer random invasions, sometimes fighting against the odds can be fun - trying to get the world master killed by npcs while you dodge the 2 summons he has chasing you

. + BoB arena has like 70% tryhard builds.
I would summon to my world/get invaded for pvp if it didn't mean losing humanity/extra hp every freaking time. Also one of the things I really dislike about DS2. Yes I know there's effigies but you're going to run out of them eventually.