Let's see:
Hochkrow
Base Stats:
HP: 100
Attack 125
Defence 52
Special Attack 105
Special Defence 52
Speed 71
As you can see, it has horrible defences, and only moderate speed. With some EVs in Speed, you may outspeed threats, but investing them in defences is not a good idea. I am sure damage calculations will prove my point, but even without that, it is easy to see that Honchkrow doesn't last too long. It can, however, make good use of Sucker Punch, and its other moves.
Here's a moveset, for example:
Honchkrow (M) @ Life Orb
Moxie
252 Speed/ 128 Attack/ 128 Special Attack
- Sucker Punch
- Heat Wave / Foul Play
- Night Slash/ Dark Pulse
- Swagger/ Toxic/ Filler (even taunt, but that's risky. It works well with Sucker Punch though)
Honchkrow may even run Substitute, but with those defenses, I suggest max speed and spray, and pray, baby.
Edit from Blob
I agree with everything in this answer aside from the set so I'll provide an alternative (as opposed to wasting my time in writing a new answer), the "standard" set. Honchkrow does have a nice special movepool and a usable special attack stat but investment in special attack isn't necessary. Heat Wave is viable though not recommended. Even if you do chose to opt for Heat Wave over Superpower, no special attack investment is needed because Heat Wave is not a primary attack (mainly for stuff like Foretress). Honchkrow has excellent attack and a passable movepool to get the job done so I'd go down the physical route.
Honchkrow @ Life Orb
Ability: Moxie
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Brave Bird
- Sucker Punch
- Pursuit
- Superpower
