If you can counter Guardian Animals turns your odds of victory increase a lot. Hunter traps, saps, big removals (warrior or priest have some of them) or early threats can counter those turns.
Paladin is more consistent but have little draw.
There is a card that colud be used to counter both decks: Bad Luck Albatross.
IMO druid is easier to counter than paladin
If you can counter Guardian Animals turns your odds of victory increase a lot. Hunter traps, saps, big removals (warrior or priest have some of them) or early threats can counter those turns.
Paladin is more consistent but have little draw.
There is a card that colud be used to counter both decks: Bad Luck Albatross.