>>715503195
a lack of interesting/engaging scenarios is a big one for me. picrel's an obvious example, but the plane arc for bn2 in general was great, giving you a mountain of constantly changing npc dialogue and even occasionally rewarding you with a chip or two if you really go out of your way to chat everyone up. bn2+3 had most of them, but i still find a few of the scenarios in bn1 to be fairly memorable
consequently, i can't really name off a scenario from bn4-6 that really stuck with me (for a good reason, shit like toyrobo comp is certainly seared into my mind though). there's more i could list off (graphics, story tone), but i haven't thought about them well enough to eloquently type them out