My impression is that the preferred topshots are Izor, Ande, and Jerry Brown. Any of these will treat you well. The more important thing is to correctly match the type of line to your application whether braid, mono, or spectra to backing, topshot, or leader and so on.
I am familiar with Izor braid-good stuff. Sufix appears to be coated, and I haven't seen any real impartial saltwater tests on it. I tend to stay with the familiar.
