Every Generation has some Pokemon that are really well designed and some that are really boring.

That being said, I have to disagree with you, I really like the rather simplistic but very expressiv gen 1 design a lot.
All 3 starter Pokemon are awesome and you have classics like Machamp, Alakazam, Gengar, Scyther, Gyarados, Eevee, Mew, Mewtwo and c'mon dude Golem and Onix are easily the best rock typ pokemon.

If I have to make a list it would be:
1. gen1
2. gen4
3. gen3 and gen7 can't choose one over the other
5. gen2
6. gen6
7.gen 5

The gen 6ers are so damn underrated it's tragic. The Froakie line, Fletchling line, Pancham line, Litleo line, Honedge line, Inkay line, Skrelp line, Helioptile line, Tyrunt lint, Amaura line, Phantump line, Noibat line, Fennekin, Braixan, Chespin, Meowstic, Sylveon, Hawlucha, Xerneas, Yveltal, Hoopa, and Volcanian designs are all out of this world and some of their best ever. The only bad designs are Klefki, the Spritzee line, and Swirlix line for a grand total of 5 bad ones. I feel like because a lot of people thought the Gen 6 games themselves were underwhelming the incredible designs from that gen get way overlooked.

I don't know man, the following are all worse for me:
- the garbage pokemon
- the ice cream
- the sword
- the keys
- the heart fish

I'm sure I forgot some.

I'd have to wholeheartedly disagree and I'm not even a genwunner and my first game was DP. The pokemon today don't look stylish at all, it's very abstract, lacks personality. There are a few that do end up standing out, but as a whole, the further it seems to get, the worse the designs seem to get. Ken Sugimori was the best Pokemon designer by far imo and to me, captures the spirit of what the series originally was. It was inspired by his own encounters, just personified and it shows. And that bridge between reality and fantasy was so sublime and pure in the Gen 1 designs and Gen 1 in general.

To me, design wise, and personality wise, Gen 5 had the worst pokemon designs, followed by Gen 6. With Gen 3 imo being the best, follwed by 1, and then 2. But that's what opinions are all about, as long as you aren't objectively trying to force your point, it's fair game. And beauty is in the eye of the beholder. Just for me, the original designs are so distinct and unique, especially for their time.

I'm not being objective. It's impossible to be objective with such a subjective topic as creature design. I grew up playing Gen 3 and 4. Most of my favourite Pokémon are from Gen 6, and I didn't even play X and Y that much.

There's no such thing as an objective opinion. If it's objective, then it's not an opinion. But yeah, they were conservative with the designs. Probably because of hardware limitations, tbh.

And magnets. And piles of mud. And fighting-styles. And eggs. And clouds of gas. And pokéballs. And purple blobs. And rocks.

Yeah, because Gen 1's names and designs were really clever.

Some great names, for example: Ekans = Snake backwards; Arbok = Kobra backwards; Seel = Seal; Dewgong = Dugong; Muk = Muck; Mr. Mime; Abra, Kadabra, Alakazam; Golem = Golem; Koffing = Coughing; Krabby (literally called Crab in Japanese);

For names, they usually just took two words in English in their entireties and put them together without altering anything (or altering very little): Beedrill = Bee + Drill; Sandslash = Sand + Slash; Bellsprout = Bell + Sprout; Ninetales = Nine + Tails; Venomoth = Venom + Moth; Horsea = Horse + Sea, etc.

Nowadays, they try to get more meanings and words (a lot in different languages) in a name to make it sound original. Decidueye, for example, is the combination of deciduous, duel and bullseye. Primarina is the combination of prima donna, marina and ballerina, etc.

And "clever designs"? Krabby is a literal crab. Ekans is just a snake. Venomoth is just a moth. Diglett is a capsule with three circles as two eyes and a nose. Dugtrio is just three Digletts slapped together. Poliwag is a regular tadpole. Geodude is a rock with a face and arms. Seel is just a seal. Dewgong is just a dugong. Grimer and Muk are piles of goo with faces. Gastly is a ball of gas with a face. Electrode is just Voltorb upside down. Goldeen is just a goldfish, etc. There are some clever designs, such as Eevee and Slowpoke, but they are few.

It's not clever to just get a random animal or object and call it a Pokémon. Nowadays they seem to try and incorporate cultural aspects and interesting creatures from around the world to make it look more unique. That's clever.

By the way, there's a Pokémon called Tentacool in Gen 1. They were trying to be cool.

I'd like examples, because I don't see that.

I think it's great that they look more like "cartoon characters". Having "accessories" or "flair" is not necessarily a bad thing. While there are some overdone Pokémon for sure, such as Vanilluxe, most detailed Pokémon actually look very good. One of my favourites is Aurorus.

It's a very detailed Pokémon, and it has "accessories". But they're all justified, and they all come together to form a cohesive, beautiful creature. Its body shape resembles an Amargasaurus, its main inspiration. Its colourful sails are based on aurorae, the gems on its body represent the Rock-type and its colours represent the Ice-type.

Well this is a rock/poison type so, not really as much;

Wait...I didn't know the loli pokémon was rock/poison wtf

I don't see why a garbage pokémon would be any worse than a sludge pokémon. I don't see why an ice cream pokémon would be any worse than an egg pokémon. I don't see why a possessed sword would be any worse than a living pokéball (not even a possessed pokéball, just a pokéball that somehow lives). I don't see why a keychain pokémon would be any worse than a magnet pokémon. I don't see why a heart fish pokémon would be any worse than a regular crab.

All this gen 6 bashing sucks! How can anyone love this franchise and not think these are amazing designs:

It's an Ultra Beast. While I don't like the concept, they're supposed to be weird, because they're from outer space. That's why it looks nothing like what its type would suggest.