The first thing is the balance. Seriously, there are so many items that are not worth using because other items are clearly better (cobalt and chaos sets, troika, spur, iron slug, some bombs, you know what i mean). I understand it's hard to balance everything in the game, but you can at least try to make some items more appealing to people.
The second thing I don't like is UVs. I think it would be cool if they provided slight bonuses, but when the UVs are giant, they make the weapon completely different. But the worst thing about them is the only way of getting them is by luck. There is that gremlin guy that can get you UVs for money, but again, whether you get a good one or not is decided only by your luck.
I know UVs aren't going to be changed because that would upset people that got them, I would be upset too, I just want to know if some people agree with me. Thanks.
Also, Lockdown is broken as hell, so I guess that's three.
If it's not the sheer UVs people use, it's the fact classes are horribly unbalanced.
As far as gear, the Cobalt stuff was the first gear to ever be put in the game, and it stands today as the most skill reliant and original gear of all time.
Weapons, it all depends on what you like.
UVs, the RNG hates nearly everyone except the rich people.
So I do agree with you.