im a fan of stealth on spinning reels. . .but not on baitcasters. i find it cuts into itself. awesome for jigging but i just took it off my baitcaster the other day.
for a baitcaster i like power pro. its a bit rounder then the stealth and fire line and not as stiff so a lot easier to cast.
150 yards of stealth is going for about $17.99
Power Pro is usually $20-30 depending on where you buy it
all i used to use for cats was #30 big game line which is a monofilament line made by berkley. i kept it on my reel for 3 seasons (which i know you arent suppost to do) but it still doesnt have much memory and its still strong.