Re: After the changes/fixes to Fishing Quests, does it differ to pick 1 or more Quest
All the bugs concerning overlapping quests were fixed months ago.
IF you want to avoid multiple quests for the same fish at 20 (especially nasty with Crustaceans), do one or two at a time.
If you want to spend more time fishing, than sailing from port to port, do multiple quests.
I prefer getting all 8 quests, then use my fish stockpile to fill as many as possible, then fish to complete the rest. I then go deliver all 8 (and sometimes get quests that I can immediately fill and deliver without moving my boat). Once I get 8 quests that I have to fish to complete, I park in my fishing spot. Sailing half-way around the world just to deliver 1 quest just doesn't seem like a worthwhile expenditure of game time.
Petra's method is less frustrating but more boring/tedious, my method is faster as long as you've got a lot of fish stockpiled, but can result in hair-pulling when you end up for 3 quests wanting 20 of a crab you just had to fish 4 hours just to fill a 15 for.
My method probably works best if you can get 2 or more players fishing, with only one doing the quests at a time. In my case, it's actually the leaders of several of the guilds within my alliance all pooling our fish, with me (the most experienced fisher & sailor, and the one who gets more game time in per week) running the quests. So far, I've gotten a 120 scroll for myself, and we've gotten 110s for all alliance fishers. We're now combining all lower PS we get to attempt to get 115s, while I continue to quest for 120s for the others. A few of the non-Guildmaster fishers are chipping in when they can, by concentrating on crustaceans (their fishers don't have the skill needed to fight off serpents).