Fun mission vs Knights

I'll be playing Knights (1450 points) vs a mate. Last time I crushed him (he gave up turn 2) , so I want to focus on an army that survives and does actions over killing his troops.

so I'm not taking any C'tan (even tough that would be awesome vs Knights).

My current thoughts is outlasting him:

* All 4++ (Warrios with Orikan - Lychguard with Overlord)

* Monolith and Tesseract Vault

I just don't know what mission is the better pick: (I presume he'll do Purge anyway)

* Hypercrypt Reconnaisance --> Triangulation

* Obeisance Phalanx + Disruption --> Delaying action

* Starshatter + PRiority assets --> Vita Link