We know the neverwinter control wizard has two paragon paths Spellstorm Mage and Master of Flame. And which one is better for solo?
Spellstorm Mage Path
More about high crit and burst. I like to used the Renegade branch to maximize the critical damage.
My control wizard build:
At-Will: Storm Pillar, Magic Missile
Encounter: Sudden Storm, Shard of Endless Avalanche, Steal Time
Daily: Arcane Singularity, Opressive Force
Class Features: Eye of the Storm, Storm Spell
Master of Flame Path
It is a fun paragon path for control wizard in Module 2 Shadowmantle. Master of Flame is about Control + Burn, personally found the oppressor branch very useful as you are constantly freezing things while lighting them up, and you do not worry about an AP gain issue, 3% AP gain per target killed with smolder on it. Smolder is the new effect when you choose the master of flame, it is a dot that ticks once per 1.5s based on your level.
Currency my fire wizard build:
At-Will: Scorching Burst, Chilling Cloud
Encounter: Fanning the Flam, Shard of the Endless Avalanche, Icy Terrain
Daily: Furious Immolation, Ice Knife
Class Features: Critical Conflagration, Swath of Destruction
In fact, any neverwinter control wizard build would be nice, but the Chill Strike or Shield on tab is our best encounter damage. I like use Shield.
Last, in my opinion, storm is high burst and the flame path is damage over time. In PvE the damage of Spellstorm Mage and Master of Flame should be the same, and the Spellstorm Mage is the stronger of the two in PvP. But if you also like fire, the Master of Flame is not a bad choice.