Red Arremer
Smash Legend
Have you seen a Wario who plays entirely gay? You won't have any chance to grab him. Wario loves playing on time and aircamping, and he will use it against characters who have an advantage over him. In fact, aircamping makes every matchup of him even slightly better in his advantage.Despite how much attention Wario is getting now, there are so many things characters can do to him with grab releasing, but of course that doesn't make everything.
Also, he does have quite a few characters that could be considered counters. My characters (ZSS, Sheik/Zelda, Peach) have the advantage against him alone. And I can think of a couple other characters that I know also have an advantage.
He's definitely still up there though, I'm just not ENTIRELY sure he is top 5 material.
All characters you mentioned may have an advantage, but it's not really too big, nothing you could count as a hard counter or really bad counter. I'm almost certain he's one of the best characters in the game, despite what many may think. As said: He does have counters, but those are not that big. He's like Fox in Melee, who had a few disadvantageous and even matchups, but still came out as best.