at the moment I see no reason why I should a warg instead of a horse, they are slower, have less health and they cant jump. why would I ride a warg when I can just get a horse that's better at everything
you don't have to give them the ability to jump or run faster, they could possibly be given the ability to hunt players within a certain range, maybe give them a pounce ability where they run really fast for a split second and bite which does a lot of damage which would make them very viable for combat
to summarise wargs have a lot of untapped potential as a mount but at the moment are quite useless and there is no reason to use them over a horse
Any opinions would be appreciated