i’ve noticed chill effects don’t apply to mobs that are unstoppable or bosses.
This means things like +dmg to chilled mob or reduced damage from chilled mobs don’t have any effect. I can understand bosses being immune to freeze but I feel that they should be able to be chilled.
whereas the fire DoT applys to every mob so you will get the full advantage of +dmg to burning mobs or reduced damage from burning mobs
for frost sorcs, your burst is pivoted around mobs getting cced, be it frozen chill etc.
unfortunately bosses are immune to CC until stagger. burning helps thats why the basic fire enchantment skill is so important to boost your numbers against bosses.
vuln, crit, burn are your only friends when it comes to fighting them.
Frost applies two forms of control (being able to get damage boost for both), Vulnerable (which neither Fire nor Lightning do), and has the best build for the Sorcerer currently. Also, Chill adds to the breaking the stagger bar, something Burning does not do.
NO, FROST DOES NOT NEED A DOT.