That is not the general way of looking at things. When you say that it means your more interested about focus firing units. Advent illum dps is not focused and is frightening. if there within your fleet and your concentrating on guardians then you are as good as dead by the time you kill the all the guardian.
Yes, illuminators are cool.... but one single hostile starbase will send you home crying, because you are hardly making a dent into it.
sure, you have capships and a Titan..... but those happens to die within 1 minute... even when supported by Guardians against phase missiles.
Massed illuminators are murderous against frigate fleet wich an occasional capitalship.... they however suck pretty hard against singular hard targets.