Your question is, well, questionable. It's like asking which is better Tracer Missle or Power Shot? Well Power Shot does technically do more damage (I think, I think it has a slightly higher tooltip damage number) but of course Tracer Missle is always better. Tracer Missle is tech, Power Shot is ranged, tech has higher crit and never misses.
There are various reasons why Force Lightning is better. Damage wise it does more damage.
Well I'm talking Force for both and both are ranged I'm just asking for opinions from those who have played Sorcerer and more experienced at MMO's.