
Mostly a cosmetic/flair addition, it would be really cool if every species of fish had a different range of Size and Weight stats that would be randomly generated upon fishing.
So when you hover your mouse over fish you could see something like:
Salmon
o Quality 24
18.2 lbs
21 in
Every species of fish would have their own size and weight ranges, with the smallest or largest 'ends' of the range being rarer.
This would allow for a lot of fun, pic sharing to see who gets the biggest fish, even social events with fishing contests and stuff like that.
Quality can't really be used for contests since it varies per region (and by species) so if everyone fishes in the same area they'll get the same quality for the same fish.
It's not really a relevant game change, but could add some very needed fun to fishing (and to the screenshots thread!)

And maybe a couple of new Experiences for getting very small or very big fish!
(And more specific requirements for the 'catch a big fish' quests
