If the fishing hot and heavy the titanium is the way to go. You can catch repeated toothy fish without them bending or kinking.

One word of caution though, I have had the Bass Pro brands literally fall apart when I went to just snug the knot down. I would of been hopping mad to have spent top $$ on leader and lure and then had it fail on a whopper. I returned them pronto.

I've been using 130lb floro carbon leaders with good results so far.