I own an LCC and have had a Tighe Pinnacle. I have handled a Tighe Pan, but never bought one. Of all three, I like the LCC the best. The LCC is very sturdy and its opening studs have great purchase. They are also dual thumb studs which can come in handy. Tighe knives tend to only have one stud which makes them a little less versatile, also the little rubber tips on Tighe studs do not offer as nice a grip as the knurled metal studs on the LCC.
The blade grinds on Tighe and Lightfoot knives are pretty similar. They are definitely tactical and not great slicers. Finally, I really like the tip or point on the LCC, it is great for opening things. The only drawback to either Tighe or Lightfoot knives is that the titanium finish that they use is very prone to scratching. Unless you use great care, these knives will quickly look used.