Yeah, from my experience (which isn't the best, of course) all you need to do is run around shffl'ing fairs against the ICs. I played Meep awhile ago and won pretty much just by playing hit & run with fairs; it is my belief now that all Ice Climber players only know how to do one thing, and that is wavedash->grab. So... don't use Fsmash, like, at all, because it'll get you grabbed, and thus, *****. If you're getting grabbed out of it, just take the tilt out. That way, when they try to run up and grab you out of the dtilt they think is coming, you can wavedash/dash backwards and hit them with something.
Playing the icies is the only matchup that I've ever played where it seems like you have to abuse your range really bad to be able to beat them. They can just unleash too much nastiness if they get a grab in, so you have to play super defensively to avoid that happening.
