What Smite to Take?
So, I've been getting into jungle lately with the new season n' all, and having Sejuani 2400 BE was very nice, but i'm really curios on what kind of "Smite" to take, I know there is "Slow Smite" "Burn Smite" and "Vision Smite" I mean here's my idea but I'd like to apply it to situations.
Usually I take ward smite when I feel I will get invaded a lot; Usually I assume you'd take red smite as a dmg jg'er but sometimes I take it on tanks when the enemy team comp is squishy; and lastly I usually never take the cold smite thing, but I'd assume it was for no mobility champs, to secure the kill easier? But I have no clue honestly.
So, what smite should I take when and why?