For my least favorite though, which I believe this forum is about, it is Samus, who is my worst character as well. Her aerial game is horrible, her offensive capabilities are among the worst, and winning matches with her boil down to battles of attrition. I simply do not like her style at all, and it does not sync with me well.
The bolded part made me lul, though I otherwise agree with this assessment.
Half the cast in Melee sucks, and 90% of characters in SSB have several zero-to-death combos anyway, so I'll just stick to Brawl. The only character I dislike using is Sonic, simply because you either need great mindgames or a Smash Ball to defeat a worthy adversary with him.
As for who I dislike playing against: Dedede, Snake, and Olimar, in that order. In the right hands, and without lag, they're pretty much impossible to approach with anyone below A-tier.
Of course, I also hate Meta Knight, but so does every other competitive player who doesn't main him.
Samus clearly has one of the worst aerial games in Brawl. Her aerial attacks are just awful. There's no luling about that. Nair is an extremely weak sex kick that will never KO under even 200%, and is just a quick, horizontal knockback producing hit with no follow up capability. Fair is a very poor multi-hitting aerial with poor reach that does low damage and barely any knockback (but it does have minor usefulness for defensive capabilities due to favorably placed, disjointed hitboxes with low start-up/ending/landing lag). Uair is like the fair, except upwards with even poorer reach (not to mention lacking the disjointed hitboxes of the fair), and less usefulness overall (it will never KO at realistic percentages nor does it have juggle capabilities). Her bair, while powerful when sweetspotted (it is her only aerial that can KO grounded opponents under 150%), is very difficult to sweetspot (one has to land a very small hotbox on her foot to do so), and when not sweetspotted, is incapable of KOing at percentages not in excess of 175%. Plus, it has noticeable ending/landing lag while having an awkward hitbox reminiscent of Ike's bair (as in, barely any vertical reach). And when it comes to her dair, while a solid meteor smash with high knockback scaling and a favorable hitbox, it has very low base knockback (opponents will have to be above 50% for it to successfully meteor) with the traditional slow start-up of a meteor smash, and is overall not that useful on grounded opponents (it won't star KO them under 150% despite its high knockback scaling, and popping opponents up isn't very useful as Samus lacks an effective vertical follow up).
So, are you still going to lul for me calling her aerial game horrible when in face of these facts? (Plus, you agree with the rest of my sentiment about her, including her having horrible offense. Now, wouldn't having terrible aerial attacks (which translates to poor aerial game) heavily hinder one's offensive capabilities?)