Great thread here. I find myself trapped in most of the situations you talked about.
Fortunately, the experience taught me how to fight against Shulks (now I have more chances to fight decently) but my nemesis keeps being Sonic. I can't #$%$# him up.
Anyway, no one has say a word about Samus.
I can't win a spamming missiles and canon blaster Samus. I can't even get closer, because I get punished when I do. Besides of that, in my desperation for getting closer, I recieve the full-charged blaster.
Pikmin throw doesn't work for me, because of the easily they get killed when they're latched, or even by the missiles.
I have more problems with other characters, but I'm not quite sure how this thread works. I'm a noob :3.
Thank you all guys for the valuable information you drop in. I have had like 1.200 (maybe more, maybe less ... I really don't see the stats) games for glory and I can't see another Olimar. The only way to accomplish this, it's being humiliated by a player who wants to "teach me" how to play Olimar, and when that happen, I don't remember losing that match. After that, I leave the player for another one.