cold fire or lightning?

which one is easiest to solo with?

Each damage type has its own advantages: Like above poster stated, Cold Damage gives you more control about your enemies through chill and freeze. Chilling will slow down all their actions and freeze will completely stop them. Probably the best choice to "get warm" with casters. You might wanna check out Bada_Bing's Cold Witch guide for Beginners.
Fire Damage recently got a huge damage buff and can ignite, applying DoT burn damage. Depending on the initial hit that caused the burning, this can melt down enemies before they can even get to you. Once again Bada_Bing has a good Fireball Guide for Beginners.
Lightning Damage is IMO the deadliest, but hardest to play solo. It can apply up to 3x shock stacks, each increasing damage by 30%. The big downside is that unlike other spells, all Lightning Spells have huge damage spikes. You can end up dealing really low damage with a few huge blows inbetween for most of the time. The majority of lightning-based caster builds are using Storm Call, combined with Static Blows and Elemental Proliferation you can take out huge packs insanely fast. If you can afford an Aegis Aurora, you might wanna check out my SC tank guide (link in my sig).


Feel free to correct me guys if i stated something wrong.