Similar to the requirements of ship needed for the different Wormhole classes:

Class 1: Basic
Solo well tanked cruiser or speed tanked assault frigate (AF).

Class 2: Low
Battlecruiser (BC) (eg. PvP fitted Harbinger) or Heavy Assault Cruiser (HAC).

Class 3: Default
Fleet of remote repair/spider tanking Battlships (BS) or a pair of logistics cruisers.

Class 4: Medium
Class 3 Fleet + Electronic Warfare (EW) boat such as a Scorpion or Rook.

Class 5:
Squadron 1: Recon
Scouts - Covert Ops/Force Recon
Tacklers - Interceptor
Heavy Tacklers - Combat Recon/Heavy Interdictors

Squadron 2: Gank
Neut Battleships (BS)

Squadron 3: Specialist
EW Scorpions
Logistics cruiser pairs (Guardian-Guardian, Basilisk-Basilisk, Guardian-Basilisk)
Note: Logistic pairs remote energy rep each other, types used depends if Squadron 2 are armor or shield based ships or a mix of both).
In a pitched battle a Carrier with Triage module maybe preferable or in addition to Logistics cruisers.

Optional Squadron 4: Anti-Tacklers
Destroyers
Stealth Bombers