Yes in a way, because the elite proc replaces one of the damage modifiers. BUT they are only available in phaser (for Fed) and disruptor (for KDF).
In all honesty though, purple regular weapons are better because they are available with more useful procs, such as Accuracy x3; since the damage modifier only adds a small amount of damage. (Which doesn't ironically help much compared with the other modifiers)
Fleet Advanced are generally the better Fleet weapons than Elite. This is because Advanced comes in greater variety (Plasma, Phaser, Disruptor, etc.) than Elite, which like Axe said, is just Phaser and Disruptor. Elites only have a unique rare proc, which is shield heal (Fed) or a massive shield resist debuff (Klink) to them, which I believe is more underwhelming than it sounds.
It's worth more if you get the Advanced weapons, as they are cheaper and easier to get than Elites, which aren't worth waiting and grinding for.
For a cruiser or other ship dedicated to either tanking or team heals, the Elite weapons sound good on paper. I don't have access to those weapons yet, so I can't tell you whether they perform as intended or not,