Hi,
I use gimballed on all my ships. I'm not that good with fixed. And i dont like the drop in DPS from turrets(i dont have the numbers but it felt a long time extra before shields dropped when using turrets).
I only use beams, but engineerd with efficient grade 5 and the powerdistributor i have grade 5 charge enhanced.
I like it bcs its really good DPS, all shields die quickly , it works really good for me. Enough secs of fire before my distributor dries up and then its full again , so for me its quickly dropping shields.
It works good for me on my python, cutter, corvette and asp. I don't really know about other ships.
I only do PVE though.
Maybe it helps a little bit ;-)