IME, common usually equals high tier. Occasionally someone will play something odd, but most players tend towards the better classes. Wizards just aren't one of the better classes, while Paladin, Barbarian, and Sorcerer are. I could make an argument about Bard, but I don't think it's as good as many in my group feel. Ranger is an oddity, because occasionally someone will try to make it work, despite being the worst class in the game. Monk and Warlock don't see much play in my group either, but that is mostly due to our play style (we generally use max 1 short rest per day, due to the time constraints).
IMO:
Tier 1 (best): Paladin, Barbarian, Sorcerer
Tier 2: Bard, Cleric, Fighter, Warlock
Tier 3: Druid, Monk, Rogue, Wizard
Tier 4 (worst): Ranger
If I was forced to slide things down to even the ranks out, I'd drop Barbarian, Warlock, and Monk. That would remove the only non-caster from Tier 1, but Paladin isn't much of a caster anyway (since spell slots are almost always reserved for smiting).