I can tell you really do like Kirby by the music on your Wii, Kawaii, haha!
I used F-air against Ch ibo because I recall him spot-dodging often game 1 and F-air's multiple hits can punish that. Although, he corrected that for the most part game 2.
Anyway, Meta Knight creates pressure simply by pushing you towards the blast-zone with his simple tools, without going punished for the majority of them. Unfortunately this is something Kirby can't do, or at least not as affective—but hey, that's Meta Knight for ya!
To pressure someone you have to create situations where you put your opponent in a position with very few options whilst you have an answer to most or all of theirs. Such as when they are forced to the edge of a stage or trying to land without a mid-air jump.
Kirby does really well when he can launch his opponent up, which a lot of his attacks and grabs do. I feel that this is one of Kirby's best positions; opponent up and Kirby underneath. This is where you can create pressure. Simply by keeping your opponent off the ground and punishing their attempts to land, while mixing up the timing of your juggles, you can net a real nice percent lead or even a KO if you can read an air dodge and punish with a hammer.
Kirby thrives on reads and it's a Kirby player's biggest virtue. Whereas Meta Knight can continuously throw out moves while still catching someone on their vulnerable frames.
That's just a simple thought of mine and wanted to share with you since you asked Kawaii. I'd say a few more examples or would be a bit more specific but zzzzzz...