I have personally been more of a every other role besides adc but you know i gotta learn all the roles so i dont feed as adc and as i was looking these champs caught my eye. My preference though is a adc that scales well and can help alot in team fights. As of right now I am leaning towards more of lucian and draven because they look fun to play.
Graves is the easiest burstiest and tankier than most ADC's however his late game is meh compared to the other two. Lucian is mobile still a fairly bursty caster mage like Graves but is more challenging. Draven is an AA heavy mage with the best DPS auto attack damage in the game snowballs harder than assassins It's not un-common to see a Draven with 20 or more kills, but get's focused easily and mastering his Q mechanic can take a long time but given his damage it's worth the payoff.
Graves for Ease
Lucian for Fun
Draven because Draaaaaaaven.
Also, what Stealthfox94 said is pretty accurate, Graves has a great early/mid game falls off late but his kit is easier to pick up then the others, Lucian is kind of even all around in all stages of the game and has lot of fun tools and abilities to play around with, Draven is all about snowballing off a single kill but can still be relevant without just not as much as others.
You should not main any champion, that concept is for big shot challenjour players, and anyone who feels otherwise is someone who just had a win streak with a champion and believe they found their divine calling. If you have a champion you love to play, PLAY THEM. But also have the ability to play plenty of champions for that role, as well as others to be successful in the game.
whats your ping
Lucian. Highest/easiest mechanics.
