Trying to mental run through my ongoing crisis...let me type it out and see if it helps.
Shulk
Pros:
-My strongest character when I'm playing at my best
-Has few bad matchups
Cons:
-Inconsistent
-Options become more limited once people learn his Nair/Fair spacing
Ike
Pros:
-My most consistent character
-Have been using him since Brawl, lots of experience
Cons:
-Struggles against people who know how to play against him
-Some truly awful matchups
Robin
Pros:
-Overall I just vibe with him
-Works well against melee-heavy opponents
Cons:
-Straight-up not a good character overall
-Does very poorly against projectiles
Sora
Pros:
-Won't SD when you lag buffer an airdodge offstage
-Strong midrange zoning
Cons:
-Less experience with him
-Gets blown up by people with heavy attacks
I've also been trying to make Chrom and Joker work to not much success.