Zm with a little of escape. The zm has options for the most part, (hopefully) several different places where i can try my best solo or with a group of (hopefully) skilled teammates. It allows more freedom and choice for the player, rather than doing the same objective over and over and over again for 30 minutes. Sure some escapes are very fun, but for me 4-5 rounds of the exact same route is boring. This can also be amplified when the rest of the team fails and you have to start over again.

For you people who will just say zm is repetitive, at least i am (hopefully) given more than one option for nearly every map, unlike with escapes where only a few have variation.