Just as you did your research, I did mine. At full force, a TOS type one phaser can generate a destructive yield of 15 tons of TNT, which has an equal destructive force of a small-yield nuclear (W25). The phaser's job is to sever the molecular bond of the target, as efficiently as possible. So, unless shields are attuned against energy, no amount of armor or hull plating will last very long.
And phaser potency was increased when energy is drawn from the warp nacelles since TOS.
My point is that, at end of the day, it does not matter which tech is "more powerful" because, at end of the day, you will get the same results: a vehicle that serves the plot. The Death Star's destructive capabilities is less important thant what the station symbolized. The Borg's destructive capabilities is less important than what the Borg represents. The E-D isn't a warship, so it's capabilities will not be emphasized, though Slave-1, being a warship, will.
And at the end of the day, we should just enjoy the stories, rather than get bogged down in fan boy nonsense, right?