North America seems to be scared of two things: robots and card players. Twisted Fate is banned much more often in North America than in other regions. Can you really blame them though? He's one of the best gankers in the game. All he has to do is walk a few steps towards your lane and he's in range to stun you. It takes extreme map awareness to play against him. Wards do very little against him except maybe buy you an extra second to react. He's been a dominant pick throughout past seasons and is still commonly seen in professional play. The NA scene also bans Blitzcrank more often than its respective counterparts. In all likelihood to avoid those early jungle invades and ability to catch opponents.
Europe West seems to have a touch of Arachnophobia judging by how often they ban Elise.Elise is one of the biggest lane bullies in the game. Her ability to harass down opponents make her a great choice top lane where there are often melee bruisers. She also great base damage on her abilities thanks to the fact that they do damage based on a percentage of the enemy's health. This allows her to build tanky while still outputting the damage needed to kill opponents.
Despite being much lower in other regions, Malphite is the top ban in EU-NE for this month.To their credit Malphite does have amazing initiation. His team fight presence, as well as the attack speed debuff he can inflinct on enemies, makes him a potent choice. It's extremely difficult to play against Malphite because of how hard it is to dodge his 1000 range ultimate. He's one of the best tanks in the game and can also pack quite the punch if he builds AP.