I've hacked with and owned both. You won't get a better chopper, as far as big blades go, than a Kukri - any GOOD Kukri. And without a doubt the CS Gurkha Kukri is an awesome chopper.
I used a Trailmaster for chopping once, and found that the guard's edge on the back of the blade started digging into my hand, between my thumb and forefinger - after a short while it really started to hurt. From then on I came to the decision that a guard protruding on the top (back), of a knife is unecessary, and something that shouldn't be there. That's why I like the guard on the SRK, for example. I still think the Trailmaster is a great blade, I just wish it had a guard like the SRK.