Also first thing I wanna say is lmao at the majority who claims that this is in Wario's favour when they don't actually know the Ike MU. If you don't actually know some aspects of the MU, you shouldn't be talking. Nothing personally against you guys, but seriously stop overrating what Wario has and underrating what Ike has. I know that it is easy to see why Wario has +1 against Ike, but in reality it isn't. This MU is +1 to Wario as long as the Ike doesn't know how to handle Wario. Yeah, I agree that Wario has many advantages over Ike >in certain situations<, but that doesn't mean Wario needs to have a general advantage over Ike. At first, like Masky said, Ike is better at killing Wario than vice versa. Almost every move Ike has have KO potential. Wario has limited ways of killing (the fart is a hit or miss, and takes time to build up and is hard to land. His f-smash is short and mustn't get staled for actually being a good KO move. Up-air gets staled a lot, since it is used for juggling/spacing, but when fresh it's a good kill move. F-tilt is a good kill move too, but it is too risky sometimes. And then Wario has other random kill moves at higher % like bair and dair...) Yeah, even HIS GRAB kills us if we aren't lucky enough to have a platform above our sorry heads or a nearby bouncing tire for that matter. The GR is very dangerous, and do everything you can to avoid it.
Second, Ike is super safe all the time, except for his ending lag, which is where we should strike. Nair and fair are just silly spacers, especially if Ike decides to move away from Wario while doing so. Ike's jab is faster than all of our ground moves (but it's not that Wario is a ground character anyway). Ike deals serious damage and can easily kill at around 120%, maybe earlier. Yeah, Ike's range is among the longest in the game, and is a pain for Wario. Avoid getting baited by him too.
And third, I laugh at everyone who thinks gimping Ike is an easy job. It isn't. His Aether lasts forever. If we have a bike or tires, then we have an advantage over Ike off stage. Pressuring Ike off stage though is the best we can do, or get a "lucky" foot stool. Yeah, if you really are willing the risk to gimp him, make sure to attack him before he uses his second jump/Aether. Retreat when he uses his Aether (unless you wanna snag the ledge before he grabs it. Even that is hard to do unless you are damaged 100%+).
Wario has the air, Ike has the ground. Wario can punish Ike hard if Ike does a mistake or if the Wario makes a hard read. Both are good at racking damage, and both can kill - just Ike having an easier time for doing so. I feel that the tires are really good in this MU for stage controlling. Since Wario has the ability to be "everywhere", it can get frustrating for Ike to deal with Wario, especially if Wario is camping. And please, just as Marth, never ever land near him. Find openings instead. You can't challenge his range. Ike is just like Marth, just slower and less dangaerous (and less annoying). I can't see why both should have an advantage over the other, so I put this as even, 0. Both are simply good at their own things, and both have advantages in certain situations, that's all. Wario has more options in this MU too. Just be patient and you'll do fine. (I know people will disagree with me now...)
EDIT: Ike's pivot grab is just too freaking crazy. Never approach an Ike if he is "spamming" pivot grabs, especially not under platforms, like BF's.
Croi: +1
G~P: +1
Teh Brettster: +1
Iota: +1
LOE1: 0/+1
xzx: 0