Problem with Pate and French Stick is that, apart from being a little bulky, they aren't all that useable after 2 years in my survival pack, whilst Oxo cubes are usually still okay.
Regarding sterilising tablets - my standard army mess tin is about 3 inches deep. I can either (a) scoop it full of water and add a steritab, wait 20 minutes then use it, or (b) leave it out and wait for 3" of rain. Even in Scotland that usually takes a bit longer than 20 minutes.
I tried fishing for a while, with full tackle I've only caught anything on about 1 trip out of half a dozen before I gave up for good. That has never given me great confidence in it as a survival method.
G