Xl works fine with 25% crit, still, avenger with 3 brd deal higher and less random damage. XL hex isn't as good as an avenger one in this case, except if you score some epic critical hit ofc. Low dr/hp characters get killed in 2-3 shots by bursters, no matter if it's xl, pancor, lsw or avenger. On tanks (75 dr or more) avenger with 3 brd still deals 80-100 damage when xl is around 60-70.