OnYourMark
オンヨマク いつも
I agree with mood4food and EB360. I play as both Ness and Marth (along with other characters also), and in my opinion, Ness should be above Marth.
Ness's second jump is spectacular, while Marth's is very limited. Ness definately has a longer horizontal recovery. Ness has a better chance than Marth in landing an edge grab. Ness's Up+B is more versatile, and his air dodge is better. Ness is very much invulnerable: he can even knock over someone with a hammer and can kill fairly easily with Up+B (unlike Marth).
Bad things for Ness? "Charge up" time: it takes a while, but Fox and Falco are just as bad. Vulnerability during "charge up": it's quite easy to make sure that Ness's thunder doesn't hit someone, though it takes some experience and skill.
Ness's second jump is spectacular, while Marth's is very limited. Ness definately has a longer horizontal recovery. Ness has a better chance than Marth in landing an edge grab. Ness's Up+B is more versatile, and his air dodge is better. Ness is very much invulnerable: he can even knock over someone with a hammer and can kill fairly easily with Up+B (unlike Marth).
Bad things for Ness? "Charge up" time: it takes a while, but Fox and Falco are just as bad. Vulnerability during "charge up": it's quite easy to make sure that Ness's thunder doesn't hit someone, though it takes some experience and skill.