Disclaimer: I 50'ed a Regen.
I realize this thread is supposed to be satirical; still, I feel obligated to comment on it (for the lulz!)
I'm gonna respond to Hakubi's comments on each power, I think. Let me say up front: I don't think he's completely wrong. Willpower is a more fun set than Regen, in my experience.
1. Fast Healing. I would almost have to agree that it's the red-headed stepchild of the defensive tier 1s... except Resist Physical Damage exists. Oh, how I wish Invuln's tier 1 was Temporary Invulnerability instead, because RPD is just crummy.
2. Reconstruction. Honestly overrated. I boggle at Scrapper builds that take it at level 4 over another attack. Personally, I took it in the 20s and never missed it before then, because as OP points out... it's a green insp. Remembering to carry green insps isn't hard. Recon's invaluable later on, once you can get it 6-slotted, but before then, frankly, it's garbage.
3. Quick Recovery. When I rolled my Regen, this power was the reason, and it still doesn't disappoint. You correctly point out that Willpower also gets this (albeit later), although this doesn't quite address the fact that Willpower's endurance demands exceed Regen's by a significant margin; frankly, I wouldn't dream of running a WP scrapper without both QR and Stamina, whereas I didn't take Stamina until I respecced into Focused Accuracy.
4. Dull Pain. Too Little, Too Late~~~ I really wish that lag time crap would be fixed.
5. Integration. The fear and confuse holes are really annoying. Still, it beats some of the other mez protection powers... or it did, until Inventions came along and allowed us to easily plug their holes (hello, Dark Armor lack of knockback protection; hello, Unyielding defense debuff).
6. Resilience. I've never taken this power. Why would I? It's Resist Physical Damage. And I've already told you how I hate that power.
7. Instant Healing. Frankly, IH is almost useless unless you pop it conjunction with Dull Pain and the new MoG at the same time. Used that way, it has incredible synergy.
8. Revive. No comment; all Hakubi's points are correct.
9. Moment of Glory. It's good for soaking alpha and little else.
Now, there are some points I disagree with, but they are less related to Regen's strengths or lack thereof, and more related to the other sets:
1. Invuln - Frankly, I played an Invuln Brute to level 32, and it was probably the most painful experience I have ever had the displeasure of partaking in while playing CoX. Even after I got Aid Self and had all the defenses fully slotted, it felt painfully squishy compared to my Regen, who was herself not all that durable. Granted, I never got to Unstoppable level. But if the set is that dependent on its tier 9, doesn't that suggest a problem?
2. Willpower. I think Hakubi overestimates Willpower. It's a great set, for sure, and honestly, I'd choose it over Regeneration on any Scrapper I rolled in the future? But it suffers from almost all of the same pitfalls Regeneration does; Malta and anything else with a regeneration debuff murders it just as badly as it does Regeneration, and since its non-S/L mitigation is defense-based, its defenses are also bypassed by most of the lovely things which use tohit buffs.
I just hope Scrappers get Electric Armor in I12.