Champions who will never be good without a complete re-work.
-Quinn
-Varus
-Urgot 
List more if you have them.
-Quinn
-Varus
-Urgot 
List more if you have them.
Urgot was crazy OP for a while before Riot gutted him.
Poppy really needs a rework, she feels clunky as hell. Warwick - clunky as well, no flow in playing him
I disagree on Quinn. While I am a low elo player (dont judge me pls) I have done well with her fairly consistently top lane.
Quinn and Varus actually aren't that bad. They both need minor reworks, not entire overhauls.
Urgot is already up for reworking.
Evelyn needs a rework. I think she's on deck to receive one. I know some Rioters commented on the fact that she was having an identity crisis and they needed to figure out what she's suppose to be before they redo her kit. I also agree Urgot needs work. He can be good even in the current meta, but he's very niche pick at the moment.
Varus is fine, he doesn't need a complete rework. I'd say maybe increase his MS by 5, and maybe increase his blight proc damage.
Varus just need some tweaks mainly to his passive.
His kit is strong and solid, doesnt need a rework.
i disagree with
he is a solid powerful chasing 4 legged gas masked, able to shoot painful Q's while standing at the back, also his R will make 1 important enemy stop for a second, and slowing enemies with powerful multiboost defense
All Varus needs is some number buffs, especially in his stats area, as those are terrible for an adc with no mobility.
Urgot also have only a slight number problem (mana costs and Q scaling mostly) but it's there intentionally, as his kit is extremely toxic to play against (even now he can instantly kill squishies with a single E hit - and there is very little you can do about that).
Quinn on the other hand is rather good to be fair. She got a lot of steroids (passive, W bonuses and whole Valor) and she is also a good assassin (R,E,Q,AA,R will kill most squishies in under 1,5s).
I think what you meant is "Those 3 champs don't fit current meta very well".
Also... Urgot is not an ADC, he is a caster and is way better played on top or mid rather than bot.
someone got a pentakill with urgot...
My friend who mains varus luvs this meta.
He dominates lane vs Tris, Lucian and kog.
I agree with varus and urgot only to an extent, dont overload their kits but make them better for the current meta
Varus and Urgot have both been quite strong in the past with their current kits.

Never played Quinn, but Urgot and Varus are quite fun in my opinion. Perhaps they aren't top tier ADC's but they are enjoyable to play. I think we should wait and see what Season 5 has in store before calling for more reworks though.
I want to add Mordekaiser as well, his kit is boring and really one-dimensional! Why is that armor dude a mage to begin with? Doesn't make sense to me at all!