Originally Posted by Best of the 3
No. He's definately not the most powerful. However, he's the most situational in my books, and the correct situations can name him the most powerful.
Take for if you had a Galio on your team. He ult locks all the enemy team into place allowing you to get free hits on at least 3-4 of them. This will make him extremely strong. Now imagine you have no AoE team locking ult. And you're playing a lot of off tanks / assassin-y type champs with dashes. With Twitches almost 0 escapes and super squishy nature he's easily killed and looks very weak.
Twitch also suffers from the fact that his abilities stack with AP but deal physical damage. Not helpful really.
Personally if you're in that situation I pick MF anyway. Her ult can deal similar AoE physical damage, she has an attack speed steroid, and AoE slow, a move speed buff and a passive (W) which deals extra damage. Her Q when can also be counted as a sort of Nuke like Twitches E. What she that twitch doesn't is an anti heal, and what Twitch has is slight invisibility.
Twitch outclasses MF in every way.
Her ult deals much less damage in teamfight, and she's instantly CCed when she starts. Twitch has better AS steroid AND better AOE slow. Twitch has better MS buff and his innate deals much more damage than fortuna's W. Her Q deals much less damage than fully stacked Expunge.
As for heal reducing vs invis- 7sec invis allows you to move yourself before teamfight into right position without being instabursted or CCed by Skarners or bursty AP mages etc.
Twitch has highest AA range of all ADCs, and after buff you will rarely miss your target. AoE CC isn't necessary for twitch.
Also, twitch can outdps your MF in every stage of game, while having more utility and teamfight presence.
As for deadly posion, it might seem weak on paper, but i played against twitch as Shen- i had like 300 armor, 4k hp. When he killed me, damage recap said that he dealt 60% of his damage as physical (1.8k) and 1.2k as true damage (410 ignite+deadly posion). i was like WHAT?! It's even better than corki's innate.
To my surprise, twitch can easily 1v1 even Lee Sin, who is considered as counter to stealth champions.