I've played enough Pandemic (another co-operative game with varying player abilities) to know that some characters' abilities are more useful than others, or at least lead to a higher probability of winning.
I've only played Yggdrasil a couple of times, but I already wonder if some characters are more likely to win than others. Abilities like being allowed to re-roll dice (Tyr) or +1 to all combat (Thor) seem more useful than, for instance, the ability that lets you use the same action more than once in a turn.
Is this fair? Are some characters' abilities demonstrably better than others?
Edit: The abilities are:
Takes two Enemy cards from the stack instead of one, chooses which one he wants to play and puts the other one back on or under the deck.
Has a permanent +1 bonus for combat.
Can perform 4 actions during his turn (instead of 3), but they still have to be performed in different worlds.
Can take 4 counters instead of 3 when he looks for souls.
Can roll the die twice and choose one of the results in any situation.
Can perform 2 of her 3 actions in the same world.