Snug is good, we like snug! Don't want a horse going down because there's nothing to lean on. In the Hawks they also tend to have wiggle room so if you have a big horse and a little horse the partition will shift so the big horse has more room.
I love Hawk trailers. They are sent from heaven!! We trailer in a WB sized two horse straight haul, fits our two big boys in there just great, and all our stuff for 3-4 day horse shows. My favorite thing about the two horse straight hauls is that you can take out the manger, or have a hay net and the horse can get its head down all the way to clear its airways. And they usually have ramps, their ramps are nice because they have traction but good luck trying to clean them.