Legion has a few rough spots, but they are mostly a result of trying to do something so strange. Certain episodes bog down slightly under the weight of trying to focus on the characters, but what a problem to have. None of it should distract much, and it's an incredible ride.
Not only are there few shows as solid as Taboo, but almost no show has ever kicked off as well, sucking you in within the first few minutes. Besides, nothing has a character like this, and Tom Hardy is at his best.
iZombie nails its effort, and that's in a game that is much harder than most will give it credit for. It's fun, absolutely enthralling, and still has to include a mystery... and zombies. Good luck, everyone else. If you become a fan of one show... well, right now, make it this.