I own 2 RMJ Hawks and love them both. If you decide to go that route I'd suggest either the standard Shrike or the slightly smaller S13 Shrike.
If your buying it for its bad ass looks, because it's almost unbreakable, and you don't mind spending the money you really can't go wrong. They do everything I ask of them flawlessly, great jack of all trades hawks.
On the other hand.
If you don't have any other hawks and don't need almost indestructible you may want to look into a nice traditional looking model like the ones made by Coal Creek Forge or 2Hawks, etc, etc.
They throw well for fun, handles are easily replaced, can be stored easily and compactly without the handle attached, give you the option of a useful hammer poll, and you can get 2 or 3 for the price of 1 RMJ.
THEYRE STILL CRAZY TOUGH.
They usually do better on wood due to their edge geometry, and still perform ok at demolition- just with more risk of cracking a handle. I imagine they'd also work just fine during a Zombie Apocalypse. They're probably a better farm implement and woods tool than an RMJ but nothing compares to the RMJ's in my mind- they're awesome hawks.
FYI.
CRKT is releasing two traditional style wooden handled hawks that were designed by Ryan Johnson of RMJ, you could probably get the best of both worlds in one of them and save a ton of cash.
Good luck deciding and know this, whatever you buy, it'll be the first of many.