I like the Mach 1 chin the best. I've seen some that look good and others that don't... I think it's the way they're installed though.
Ive got the termi on mine that i just installed 2 weeks ago and I love the way that it looks. To each his own though. But they both look nice and compliment our cars well
do you happen to have pictures?
IMO the mach looks too "tacked on" especially since it is not long enough to be flush with the wheel wells. If you get any kinks in it from a floor jack or what have you then it looks bad. I voted termi style since at least it fits well enough and is an improvement. As menioned this, is subjective topic.
It's all about how you install the mach 1 chin. Line it up and you get a nice look. Especially from the side even with the small gap.