Cutest
Azurill: It's a cute little blue mouse which bounces ona ball. :3 Plus, when I first saw it in Sapphire, I completely fell in love with it.
<3
Jirachi: It looks so lovable. :3 I bouht Pokemon Channel (which, the game itself, kinda sucks) just for Jirachi. Heck, I searched in most shops for it. :P Yeah, I love Jirachi.
<3
Espeon: I just love it's purple fur. :3 While it isn't as cute as the others, and probably fits moreinto the 'beautiful' category, it is still pretty cute (and my favourite eeveelution.) :D
Torchic: Last but certanly not least (I could think of loads more, such as antyke, Piplup etc. but I'ljust shut u now xD) is Torchic. :) Since Blaziken (one of my favourite Pokemon, by the way :D) fits more into the 'cool' category, I'll just have to go with second best. It's a cute little chick, what's not to love?
<3 I always pick it on Ruby/Sapphire/Emerald :3
Ugliest
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Jynx: Ah, the infamous Jynx, known for causing controversy about being a rcial stereotype. All that aside, to me, Jynx looks like a transvestitie more than a okemon. C'mon, it looks like smeone dyed their skin blue and went, hey, it's a Pokemon. >_> It's lip looks like they belong to a fish, and her eyes make her (thank Arceus it cant be male) look like a druggie. And her expression makes me think shes saying (or thinking): "Why the hell am I a Pokemon. I ate Jynx with a passion, plus have you seen it's R/S/E sprites? You think you're getting a hug from me, think again! |:<
Spinda: It looks like a druggie, 'nuff said. The only thing i can praise it for is how they hae mny different appearances, apart from that it is just a boring, useless, easily forgotten normal Pokemon.
Bidoof/Bibarel: Bidoof, not so much as Bibarel. Bidoof just looks like a doofus
beever plump mouse O_o Bibarel on the other hand, looks like it just ate a child, a doofus and on drugs (yay, drugged Pokemon. >_>) I could go on, but meh... onto the next Poemon!
Probopass: aka. Mr Potato Head, Nosepass, a petty ordinary Pokemon, kinda forgotten got an evolution. Yay? Maybe not. The problem is, they messed up Nosepass, by creating Probopass. What is with the moustache? And it's nose is much larger, oh joy... Yeah, thats about it.
Others include: Magnezone, Tangrowth, Smoochum etc.