melee skeletons mostly good when give them over 200%movement speed
mage skeletons mostly good from linking spell echo to them, when manual cast them, and they share the same support gems as phantasm on kill does
Minion instability skeletons not that good at all, since its 1 hit as many as a swing, its mostly good to make them die for heartbound selfdamage chainreactions on a budget, only good vs bosses that kill skellie fast
summoners kinda overtunned atm,
they not require a lot efford anymore to make it work
5 mages for example, can kill all content
you not even need frenzy shield/flesh offering/autocasting spectres+zombies anylonger