I dont use trilene to much but i do use cajun red cast and cajun lighting both in ethier 10 to 12lb test. I have also tried Cabelas Pro Line which has good abrasive resitence and good castibility and for an affordable price of only $6.99 per 1,000 yard+ spool.
Depends where and what you are fishing for. In the heavy current of the mississippi I like Stren superbraid and Power Pro braid. Fishing for flatheads in smaller rivers with less current I'll use Berkley big game.
I also like the berkley big game, and the trilene big cat line, but for toughness I really liked the Spider wire briads they are really good, but there is a new flourescent braid out in the Bass Pro catalog that I would like to get my hands on for some night time striper fishing
I have to agree with 777 Ande premium 50lb in pink is my line. It is the best trowing line for big bait casters, its more of a flat line. Does not backlash easy. I buy it by the three pound, it is like 3000 yds. I think last time I bought it was around 80-100 dollars (last year). Check out Bass proshop salt water website to see all of the prices and choices they have. Best line out there for big cats. Just my thaughts.
I have tried many different brands of line. But my goto choice for catfishing is berkley big game, because of its' strength. low memory and the price is reasonable. For wiper and white-bass fishing I like using Fireline by berkley, because of its' castability, and no stretch qualities.