If you're specced into flow caps or running a drain build: Dominion polaron
if you have very high crit rate and uses the dyson consoles (that boosts proton damage): Protonic polaron.
I'm from the former category, running a sci ship, and enjoys dominion polaron ever since it came out
If you're unsure: mix and match (since they all benefit from the same tac consoles)
Dominion Polaron (if you mean the ones from Boldly They Rode) only go up to Mk11 and come with a lone CrtH mod. That means your Protonics are gonna hit harder and probably be more accurate.
The Proton damage from Protonic Polarons... I'm not sure, but I think the extra Proton damage can also crit separately from the Polaron damage, since I've seen some really high numbers when critting baffle me at times.
Try the Protonic Polarons in any case, I doubt you'll be disappointed.
Comments
if you have very high crit rate and uses the dyson consoles (that boosts proton damage): Protonic polaron.
I'm from the former category, running a sci ship, and enjoys dominion polaron ever since it came out
If you're unsure: mix and match (since they all benefit from the same tac consoles)
Try the Protonic Polarons in any case, I doubt you'll be disappointed.