Little Mac is my 3rd main (1st is Lucario, 2nd is Shulk; I use King Dedede and Ike as counterpick characters against Little Mac and Ness, respectively) and projectiles are really annoying for Mac. I've gotten into the habit of using Jolt Haymaker to dodge projectiles and still be able to approach, but it's risky because it's easy to fall off the stage with that move; from there, you're screwed. Otherwise, I'll just approach very carefully, get in an attack, and roll out very quickly to avoid grabs. As for getting back on stage with Little Mac, Jolt Haymaker seems to be most effective at getting Mac back on stage; sort of like Ike's Quick draw being more effective at recovery than Aether.
Also, is it just me or is Ike a bit better than he was in Brawl? Quick draw seems to cover more distance than it did in Brawl, so recovery is much better. Also, if you hit someone mid-air with Quick draw, it no longer leaves you in a helpless state (iirc, it did in Brawl.) His attacks are still slow as balls though, but my (nonexistent) god that edgeguarding ability...