Ever since I got done with my "Which Pokemon Are Used The Most By Important NPCs?" spreadsheet, I've had Pokemon boss fights, teams and Pokemon selection on the brain due to all the insight gained via that sheet and the intensive scouring through teams assembling the sheet required. Seeing as this fleeting obsession newfound interest has yet to subside fully, I figure I'd make another thread about it more open to discussion and longevity. Discuss anything that makes you love/hate certain boss fights in the main games or spin-offs, whether it be build-up, atmosphere, story significance, the fight itself and more.
To kick things off, let me talk a bit about my most loved/hated final villain fights in the main games.
Best: Cyrus #3 (Platinum)
The perfect storm of engaging combat and story significance. On its own it would still be good for providing a perfect level of challenge via Cyrus' very well-rounded team and notable but not excessive level boost compared to what the player will likely be at this point. But what truly makes it is the atmosphere: The entire duel takes place with the dark blue void of the Distortion World serving as a backdrop. This along with Cyrus' chilling, powerful theme playing in the background signals that you are no longer fighting an average crook or a poor misguided fool, but a dangerous madman who must be stopped at all costs.
Worst: Archer (HGSS)
This is, what, the 3rd time I've ranted about this guy? As such, I'll keep it concise and to the point: two one-stagers and a Houndoom, none of which are above Level 40 is utterly inexcusable for a culminating villain fight like this. I single out his HGSS incarnation because at least in GSC he had the "excuse" that he was a generic executive in that, but now that he's his own character who I assume is supposed to be taken seriously and GF by this point had nearly a decade more experience in boss design (including creating the aforementioned final Cyrus fight literally just the previous game before this), the fact they didn't even make the most rudimentary changes i.e. evolving Koffing into Weezing is even more laughable. There's an argument to be made for staying accurate to the source material, but not when that source material was fucking garbage.
To kick things off, let me talk a bit about my most loved/hated final villain fights in the main games.

Best: Cyrus #3 (Platinum)
The perfect storm of engaging combat and story significance. On its own it would still be good for providing a perfect level of challenge via Cyrus' very well-rounded team and notable but not excessive level boost compared to what the player will likely be at this point. But what truly makes it is the atmosphere: The entire duel takes place with the dark blue void of the Distortion World serving as a backdrop. This along with Cyrus' chilling, powerful theme playing in the background signals that you are no longer fighting an average crook or a poor misguided fool, but a dangerous madman who must be stopped at all costs.

Worst: Archer (HGSS)
This is, what, the 3rd time I've ranted about this guy? As such, I'll keep it concise and to the point: two one-stagers and a Houndoom, none of which are above Level 40 is utterly inexcusable for a culminating villain fight like this. I single out his HGSS incarnation because at least in GSC he had the "excuse" that he was a generic executive in that, but now that he's his own character who I assume is supposed to be taken seriously and GF by this point had nearly a decade more experience in boss design (including creating the aforementioned final Cyrus fight literally just the previous game before this), the fact they didn't even make the most rudimentary changes i.e. evolving Koffing into Weezing is even more laughable. There's an argument to be made for staying accurate to the source material, but not when that source material was fucking garbage.