Danios. Eat everything b4 anyone else can get near the food, nippy and picky towards anything when bored, which is pretty much all the time.
Tetras are ok. Yeah they do spend a fair bit of time doing very little but are very good to watch when displaying spawning behaviour.
I'n
m not keep on anything overly aggressive either but not because they've done anything wrong really. I just don't feel I have the experience to give them what they need and simply can't mix with the fish I love so much.
Bettas are so not boring! My Ollie is so full of character. Like many of my fish he responds to my voice and gets all excited when I go for a chat with him. And it isn't food related. He'll respond no matter what time of day it is, even if he's just been fed and has a full tummy.
All fish have pros as you can learn something from them all. The real issues arise from experience, ability (or the lack thereof both the latter) and personal preferences on our own parts.
Hugs,
P.