I have a Renzetti Traveler and an Peak. I feel more comfortable with the Peak for larger flies.
Otherwise the Renzetti to my choice.
A seldom mentioned problem with the Regal is that if you are left handed the jaw clamping lever is in a very bad spot.
You end up having to work it with the heel of your hand instead of your fingers. And if you rotate the jaw assembly to use your fingers in another bad spot the material clip is underneath the hook.