It's just relentlessly fun, even if you're getting crushed, you're dead for about a fourteenth of a second and then you're back in the mix for another shot.
I've literally never played a game of PVP in a year + that featured full stop dominance of any kind of spawn camping or sniping behavior, the kind where you literally don't have a chance to move your head before you're dead again.
I'm not including Trials here, because that was the most mercilessly unsatisfying PVP experience I've had in gaming history. THAT is a game mode where you will get crushed before you even have a chance to poke your head out.
But regular PVP, even IB, is unstoppable fun, winning or losing.