I'm looking for a new main and except for Lux I just can't get this satysfing feeling of all your abilities fitting into one whole from any other champion. I played a lot of MF and she is somewhat similar but her auto attacks just don't feel like they fit into the rest of her kit during late game (maybe it's just me). Who's the most fluid in their gameplay in your opinion?
I really feel like it's Kai'Sa, utilizing your W, R, and E to assassinate targets is such a fantastic feeling and her AA and Q almost never feel clunky when used in unison. I love that champion so much
Call me a weirdo but Taric and Shen, the latter in particular once he gets attack speed and CDR, feel very fluid with their attack moving and rhythm. I feel a sort of flow with their gameplay. Attack speed melee in general has a satisfying fluidity to them, if I'm using the word correctly.
Personally for me it's 
and 
Might be your build on Miss Fortune. I feel her autos satisfying. Do you take conqueror or dark harvest? If not, you should give them a try.
Akali has been fun for me. I will admit pre 6 is hell to deal with, but a dark seal/dorans with boneplating makes things smoother. After 6 her whole kit feels smooth.
Irelia's similar to Akali for me. 
makes csing so fast and smooth on her. I just love her play style.
Vel'koz's rotation and ult have a very satisfying lock on moment
your Q is your damage.
your E is your utility
your W is your crowd control
your R is a big middle finger to anyone with 800 hp that forgot to buy magic resist, zhonya, or equip the null orb rune.
Kayn feels pretty fluid
Just gonna scroll through my champs and list champs that feels incredibly "fluid" to play. Note that I'm a mid main so most will be mid laners. Xerath, Mordekaiser, Kassadin, Jinx, Taliyah. Depending on how specifically you define it, there could be more that I looked over, but just from my highest point champs those feel really comfortable
