I spend a lot of time in PvP zones doing the mini games. This is one of my favorite parts of the game.
I do wish there was a zone where players can't attack each other but can interact with the enemies/environment to have an impact on what was happening and potentially effect other players indirectly.
[edit] Below are two examples already in the game. Siren's is a pvp zone and Gladiator is an arena. I'm thinking of a zone without players directly attacking players style mini game.
Example: Battle for Siren's Call
Zone control shifts back and forth based on battles at Siren's Call hotspots. At any given time, there are usually one or two active hotspots on the map, shown by white rings with red rays. Large groups of NPCs (armies) stand around there, and sometimes decide to shoot at one another; at the southeastern (waterfront) and northwestern (plaza) hotspots, they will wait indefinitely for players to get things started by creating aggro. Players can both attack enemy forces and assist friendlies with heals, buffs and taunts.
Neutral mobs also hang around the hotspots; they will aggro on Arachnos, Longbow or any player.
Once started, a winner will eventually be declared for the battle with a yellow zone-wide announcement. The loser is the first side to have X of their NPCs defeated, where X is something like 20-40. Thus it's possible to win a battle in which your side's army never fires a shot; neutral kills of your enemy will also help you win. The win will color the Score bar more blue (Hero win) or red (Villain win).
Example 2: Gladiator Matches
The Gladiator match takes your created team of Gladiators and puts them to the ultimate test of strength against a rival player's Gladiators. The controls work similar to controlling a Mastermind's minions. Combat is between Gladiators only; their owners cannot participate in combat aside from controlling their Gladiators.
To create your team of Gladiators, click on any Battle Terminal, and click the 'My Gladiators' button. Select any combination of Gladiators you wish to use. Take note though, each Gladiator has a point cost, and your Gladiator team cannot exceed 2000 points. Further, you cannot use more than three of the same Gladiator for one team, so choose carefully!