cho is trash tier so having him there is a bit disingenuous, but that team comp would run over the other, at every stage except level 1-3,
he gets kited more than any juggernaut has a mediocre lane that turns terrible if the oponent has any form of mobility or range, and has 1 piece of cc that is semi reliable, he is trash
Quin can vault out of whatever CC gragas uses on her.
gragas isn't hitting her he is pushing her in, also gragas e cancels vault because of his hitbox hitting her first, besides his goal isn't to kill her its to keep her under tower, where she is vulnerable to dives from hecarim, and can't roam
Ezreal can just farm under tower.
he will miss some cs for sure and the tower will also get chunked from the constant push, but the main benefit is the complete loss of pressure mid, and top has the same issue, making rift herald a very easy choice to take by the tank team(what im calling the team with the 4 frontliners and the drain tank)
Graves can duel hecarim at pretty much any stage of the game.
graves won't invade much though and he won't be ganking much, it doesn't matter if he can duel him if hecarim just avoids the duels to hit the triforce power spike and start forcing objectives with it
TF and vayne just have to play safely until the lane phase is over; TFs gold card can stop alistar in his tracks and good TF supports WILL do that.
heres the conundrum, they have 1 piece of cc at level 2 to deal with the alistar and draven, if alistar just goes in with a basis w-q combo, so why doesn't the alistar target tf? Vayne won't do much damage and neither have much escape even less so on tf. The raw kill strength of draven means that tf can't gold card alistar or draven will just run down either vayne or tf, against 2 squishy champs with no shielding and minimal cc, draven can 2v1 relatively easy especially because of how weak vayne is early
You can theory craft anything, but from experience the team i chose to be tanky doesnt really mesh very well. They might get a pick.... But when the draven gets bursted by four ADCs all spiking him at once, hes going to pop like a hydrogen balloon in a vacuum.
from my experience, taking 3+ marksman against a standard comp without a frontline means you lose. Also the only person out of the champs you showed who even has the potential of getting on and bursting draven is quinn, graves and vayne are to short range, ez doesn't have the damage and tf is a support, they don't have any backline tools and unless the tank team disperses they have no actual way of engaging
Late game theres still at least four ADCs to consider as threats. Once the draven is taken care of thats it; the tank comp is centered around the draven and if that center is gone the comp falls apart and must disengage or try to push through if the enemies are low enough.
Your point relys on the tanks afking and not using their kits properly they shouldn't be diving, only hecarim should really do that, they need to just stand around draven and he will just win the game. the marksman team can put out a lot of damage but they should never be able to get to draven, they have no dive potential no pick potential outside of draven deciding to run around alone, and no engage, they can't actaully do anything late game unless the enemy team misplays terrribly or they managed to create such a massive snowball that they just have the gold to win. Theres a reason LCS teams don't run all adc comps, and tanks find a way into almost every single one of them, you peal for your carries or they will be forced to focus the divers and tanks of the enemy team because of the amount of disruption, while the enemy carries get to free fire
top exists. Literally if you take any adc top the chances are you'll win against 90% of the top lane pool. With the exception of like allowing a fighter to get in your face. Not to mention Lucian going mid and doing well. Twitch jungle is just aids. Imagine minding your own business and hear "OH HELLO" and just melting. Honestly I'm tired of making these posts because its evident nobody is going to do anything about adcs dominating because they've been dominating this whole time. You can run teams without a mage, you can run teams without tanks occasionally, you can run teams without an assassin, but a team without an adc isn't a team. I HATE this adc bias. I hate it so god damn much. Sure they'll make runaans ranged only but you know who cares if black cleaver makes adcs into ranged bruisers :^) Thanks for ruining a game ive invested so much into~
top
jungle
mid
supp
works better tho
top
Jungle
mid
Support
If they buy 
it doesnt matter if the enemy team runs 
; theyre going to win because they ALL have good CC, they ALL have good itemization that directly counters tanks, and they ALL have sustained burst. Only in a skill mis-match situation will they lose.
, who is surrounded by a wall of tanks, who if they manage to hold anyone still for half a second they will get 2 shot. They could litterally just run it down mid since they can tower dive so well against a comp that has literally frontline, or disengage tools.