Favorite Pokemon without an evolution? [No legendaries]

Gen I: Lapras (he can surf anywhere) and Ditto (can transform into or breed with other Pokémon, even can transform into humans (as shown in MPJ manga))
Gen II: Delibird (Torchic and Piplup's cousin that can fly) and Heracross (fighting bug but cannot fly)
Gen III: Plusle and Minun (two of my favorites), Tropius, Absol (looks like a legendary to me in terms of design)
Gen IV: Carnivine (Pac-Man anyone?)
Gen V: Throh and Sawk (they're Mario and Luigi of Pokémon universe), Druddigon (he was supposed to be psuedo-legendary, but he's not)

Definitely Lapras, Zangoose, Spiritomb and Sawk . <3

I always thought Farfetch'd was boss when I was a kid. Nowadays, though, there's plenty of other guys out there, but I don't usually have one form pokemon on my team.

I would probably say Lapras, Absol, and Skarmory.

Lapras because it is very beautiful and graceful with a hint of a sea dragon. Also it's tough to beat if you don't have something to counter it's types.

I have always liked Pokemon with a design similar to a ghostly dog, or fox (a bit like Ninetales). Absol has this elegant, but pale mysterious appearance, which I love. It doesn't tend to last long in battle, but with the right move set, and strategy Absol can be a very tactically offensive Pokemon.

Skarmory is one of the best looking bird Pokemon in my opinion because it looks like a steel knight of the sky. It's more so useful as a defensive hazard user, but I tend to like it's potential offensive traits.

Lapras: Such an elegant Pokemon. It's bulky and learned Ice Beam via level-up. I have fond memories of using it in early generations.
Aerodactyl: It looks fierce; it's the coolest fossil, for me. Its attack and speed can wipe out a whole team. I'm very happy to have used it in a local tournament once and win with it.
Skarmory: I like its design, especially its razor sharp wings and the red feathers.
Tropius: What a fun Pokemon! It's a dinosaur with some bananas on it. I liked flying around on a Pokemon like Tropius.
Absol: It's one of my top favorite Pokemon. I'm fond of Pokemon that have a feline or canine appearance. I really like how Absol's fur is shaped/cut and I like the blades on its head and tail.

Aerodactyl and Sigilyph. The first one becuase it's really cool, and really useful, both in game and in battle. The second one, because it's really badass, I've winned many battles thanks to it.

Absol!

GIRATINA!!!!!!!!! My favorite Pokémon, as my name implies.

But if we're not talking legends, I have to say either Kecleon or Absol. Kecleon for being a lizard with high Special Defense (I like Pokemon with high special defense: Empoleon, Umbreon, etc.) and Absol for just being a boss prophet wolf.

My favorite is Ditto! Who also happens to be my very favorite Pokémon overall, as well~

I'm using Sigilyph in Black 2, and it's worked wonders for me. I like its strength.

Absol is my absolutely favorite Pokémon of them all :P so he´s the absolute leader :D

I also like Lapras, Girafarig, Skarmory and Tropius :3

Hmm.. that would probably be Relicanth, I just like it's design and that it (probably) is a reference to a real life fish.

Emolga. People are all like "why doesn't pachirisu evolve into emogla that doesn't make sense" and I'm just like no. Really, though, it's an amazing pokemon. It can learn some pretty cool moves and it always comes with a free cheri berry.

Gen I - Lapras
Gen II - Skarmory
Gen III - Mawile
Gen IV - Chatot
Gen V - Cryogonal

While looking through Bulbapedia for this, I noticed how few of these there are left.

Kangaskhan, Dunsparce, Zangoose, Relicanth, Rotom, and Druddigon.