It all depends on what you are looking for from filtration. If you look at the what the current diesel manf want to see as far as filtration you want filters that filter down to at least 3 microns absolute. If a filter only does that at a nominal rating 50% with each pass the absolute rating 99+% is usually 2x-3x that size.
I prefer the Donaldson and LuberFiner brands.
Here is a thread I posted filters from Donaldson that meet these ratings. Differing flow rates, sizes, and threading.
http://powerstrokearmy.com/forums/showthread.php?p=323380
The ones I use that fit the typical Baldwin FB1311 of NAPA 4770 bases most use:
P551311 9.17" L 3 mic@ 99% 160 GPH recommended flow capacity @ up to 100psi fuel pressure for a max of 0.2 psi drop
I run a DAHL 150 for water fuel separation but before that I ran the P550901 9.04" L @ 7 mic@99% 120 GPH recommended flow capacity from Donaldson as well.
You can get it with the water sensor bottom that from what I could tell you could extend the stock water fuel sensor harness to reach and wiring it in. Your fuel water warning light should then function off the filter. Which will actually filter water unlike the stock filters that seem to never have water in them unless there was a stupid amount of water in the fuel. At least that was what I experienced.
Anyways that is what I got as far as filter info in concerned.