1 Ranger Conclave of Power: GO GO POWER RANGERS! Jokes aside I found it mechanically effective and efficient, filling a niche in Ranger subclasses.
2 Barbarian Path of the Dragon Queen: Awesome, flavourful but open enough that I can use it in my world that doesn't have Tiamat in it.
3 Rogue Maverick: Its good at being exactly what it wants to be and is a better Bard RP-wise than 5e Bards are if you ask me.

1 Warriors of Old
2 Bigger is Better