I used to use the Ninja skill but had too many people complaining that it gave me an unfair advantage in the end game when it was anywhere with ledges that are hard to get to or buildings I could climb but the enemy could not.

I now use the Poltergeist skill but feel it would be absolutely unfair to use that in the final 1v1. Just feels cheap to me to do that.

I may start using the one that gives you an instant barrier to hide behind to buy some time when under attack throughout the game. Other than the only other choice of running in those situations.