Chozen, I don't think you are giving olimar enough credit. His only downfall is his tether recovery, and his weight; 90% of the time the tether isn't an issue, as he'll recover high or die due to his weight. He has enough disjointed range, quick attacks, and pressure to be really good.
Also, micromanaging pikmin isn't as hard as people think, especially while you are in the air/while the opponent is. I don't see olimar as top, but I can see him in the 2nd tier (under MK, snake, G&W, DDD, Falco, Marth, (tier 1). I know personal experience isn't the best recommendation, but I play a pretty nasty olimar, and it feels more frustrating than playing MK, because of the quickness olimar can rack up damage and kill you.
Also, he can grab you from on the ledge. I mean, seriously...
Also, micromanaging pikmin isn't as hard as people think, especially while you are in the air/while the opponent is. I don't see olimar as top, but I can see him in the 2nd tier (under MK, snake, G&W, DDD, Falco, Marth, (tier 1). I know personal experience isn't the best recommendation, but I play a pretty nasty olimar, and it feels more frustrating than playing MK, because of the quickness olimar can rack up damage and kill you.
Also, he can grab you from on the ledge. I mean, seriously...