Not sure if you've decided on a Hawk yet, but I figured I'd tell you why I chose Skymaster.
1. most prefabricated
2. All ordnance available through Skymaster
3. Only one with a top engine hatch (that I'm aware of)
4. All metal landing gear opposed to plastic covers.
5. Only one with factory installed lighting available (that I'm aware of)
6. Painted outside of mold (no seam lines)
7. Liked the scale detail kit.
8. Factory bypass

CONS:
1. Heavy
2. New & unproven

It seems like SM almost Had an unfair advantage. The others were produced years ago & have entire threads dedicated to the builds that contain a ton of customer feedback. It seems SM has studied those threads & corrected a lot of the valid complaints.

I'm really happy with my choice so far. You can't go wrong with any of your listed Hawks, but those were some of my deciding factors.
Best of luck, & post your decision,
Jay