I main Ike and go meta knight instead of the Ike ditto because **** that ****... And I do that mu a lot. So lemme just throw out what I think of this matchup.
1) meta knight should Never try to control space, meta knight can't control space well enough to snuff Ike out. Dash dance camping into dtilt is a good approach. if Ike shields the dtilt just jump and try to pressure him and cross him up (As his oos options consists of grab and Wavedash), or just retreat.
2) as meta knight is more mobile then Ike, Ike will likely be playing more passively, he'll be spacing hard and likely won't want to approach. You can approach this by rushing him down, or baiting him to throw out some move
3) Ike shouldn't recover against meta knight. If he recovers low, just ledge drop and throw out a rising nair. This snuffs both quick draw and aether, although for aether you'll likely go deep. This sounds hard but once you get the timing done, gimping Ike is cake. When recovering high, meta knight should not commit, just stay on the ground, near the ledge and react. If he stalls to the ledge, grab ledge, if he tries to recover on a high platform, get there ASAP. Gimping Ike when he recovers high is far harder, but it is doable.
4) mixup your own recovery. Ike needs one read to get you killed on your recovery. Rarely go for the same thing twice and try to recover high. Side b is ass on Ike because it doesn't auto grab ledge and Ike can fsmash you. Nadoing to a high platform is good from what I've seen, but don't if you're close enough to the ground to get fsmashed
5) Ike can get some good **** off a grab off stage. Like all ff, if you jump right after being thrown offstage... Ike can dair you. Just wait a second, and don't get flustered
Essentially, you both kinda try to grab each other by the balls and never let go, but meta knight has better pressure and offstage tools.